1/* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4 * Copyright (c) 2005 Mellanox Technologies. 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#include <linux/module.h> 36#include <linux/init.h> 37#include <linux/errno.h> 38#include <linux/pci.h> 39#include <linux/interrupt.h> 40#include <linux/gfp.h> 41 42#include "mthca_dev.h" 43#include "mthca_config_reg.h" 44#include "mthca_cmd.h" 45#include "mthca_profile.h" 46#include "mthca_memfree.h" 47#include "mthca_wqe.h" 48 49MODULE_AUTHOR("Roland Dreier"); 50MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 51MODULE_LICENSE("Dual BSD/GPL"); 52 53#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 54 55int mthca_debug_level = 0; 56module_param_named(debug_level, mthca_debug_level, int, 0644); 57MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 58 59#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 60 61#ifdef CONFIG_PCI_MSI 62 63static int msi_x = 1; 64module_param(msi_x, int, 0444); 65MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 66 67#else /* CONFIG_PCI_MSI */ 68 69#define msi_x (0) 70 71#endif /* CONFIG_PCI_MSI */ 72 73static int tune_pci = 0; 74module_param(tune_pci, int, 0444); 75MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 76 77DEFINE_MUTEX(mthca_device_mutex); 78 79#define MTHCA_DEFAULT_NUM_QP (1 << 16) 80#define MTHCA_DEFAULT_RDB_PER_QP (1 << 2) 81#define MTHCA_DEFAULT_NUM_CQ (1 << 16) 82#define MTHCA_DEFAULT_NUM_MCG (1 << 13) 83#define MTHCA_DEFAULT_NUM_MPT (1 << 17) 84#define MTHCA_DEFAULT_NUM_MTT (1 << 20) 85#define MTHCA_DEFAULT_NUM_UDAV (1 << 15) 86#define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18) 87#define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18) 88 89static struct mthca_profile hca_profile = { 90 .num_qp = MTHCA_DEFAULT_NUM_QP, 91 .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP, 92 .num_cq = MTHCA_DEFAULT_NUM_CQ, 93 .num_mcg = MTHCA_DEFAULT_NUM_MCG, 94 .num_mpt = MTHCA_DEFAULT_NUM_MPT, 95 .num_mtt = MTHCA_DEFAULT_NUM_MTT, 96 .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */ 97 .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */ 98 .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */ 99}; 100 101module_param_named(num_qp, hca_profile.num_qp, int, 0444); 102MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA"); 103 104module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444); 105MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP"); 106 107module_param_named(num_cq, hca_profile.num_cq, int, 0444); 108MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA"); 109 110module_param_named(num_mcg, hca_profile.num_mcg, int, 0444); 111MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA"); 112 113module_param_named(num_mpt, hca_profile.num_mpt, int, 0444); 114MODULE_PARM_DESC(num_mpt, 115 "maximum number of memory protection table entries per HCA"); 116 117module_param_named(num_mtt, hca_profile.num_mtt, int, 0444); 118MODULE_PARM_DESC(num_mtt, 119 "maximum number of memory translation table segments per HCA"); 120 121module_param_named(num_udav, hca_profile.num_udav, int, 0444); 122MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA"); 123 124module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444); 125MODULE_PARM_DESC(fmr_reserved_mtts, 126 "number of memory translation table segments reserved for FMR"); 127 128static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 129module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444); 130MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)"); 131 132static char mthca_version[] = 133 DRV_NAME ": Mellanox InfiniBand HCA driver v" 134 DRV_VERSION " (" DRV_RELDATE ")\n"; 135 136static int mthca_tune_pci(struct mthca_dev *mdev) 137{ 138 if (!tune_pci) 139 return 0; 140 141 /* First try to max out Read Byte Count */ 142 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) { 143 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) { 144 mthca_err(mdev, "Couldn't set PCI-X max read count, " 145 "aborting.\n"); 146 return -ENODEV; 147 } 148 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 149 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 150 151 if (pci_is_pcie(mdev->pdev)) { 152 if (pcie_set_readrq(mdev->pdev, 4096)) { 153 mthca_err(mdev, "Couldn't write PCI Express read request, " 154 "aborting.\n"); 155 return -ENODEV; 156 } 157 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 158 mthca_info(mdev, "No PCI Express capability, " 159 "not setting Max Read Request Size.\n"); 160 161 return 0; 162} 163 164static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 165{ 166 int err; 167 168 mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8; 169 err = mthca_QUERY_DEV_LIM(mdev, dev_lim); 170 if (err) { 171 mthca_err(mdev, "QUERY_DEV_LIM command returned %d" 172 ", aborting.\n", err); 173 return err; 174 } 175 if (dev_lim->min_page_sz > PAGE_SIZE) { 176 mthca_err(mdev, "HCA minimum page size of %d bigger than " 177 "kernel PAGE_SIZE of %ld, aborting.\n", 178 dev_lim->min_page_sz, PAGE_SIZE); 179 return -ENODEV; 180 } 181 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 182 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 183 "aborting.\n", 184 dev_lim->num_ports, MTHCA_MAX_PORTS); 185 return -ENODEV; 186 } 187 188 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { 189 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " 190 "PCI resource 2 size of 0x%llx, aborting.\n", 191 dev_lim->uar_size, 192 (unsigned long long)pci_resource_len(mdev->pdev, 2)); 193 return -ENODEV; 194 } 195 196 mdev->limits.num_ports = dev_lim->num_ports; 197 mdev->limits.vl_cap = dev_lim->max_vl; 198 mdev->limits.mtu_cap = dev_lim->max_mtu; 199 mdev->limits.gid_table_len = dev_lim->max_gids; 200 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 201 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 202 /* 203 * Need to allow for worst case send WQE overhead and check 204 * whether max_desc_sz imposes a lower limit than max_sg; UD 205 * send has the biggest overhead. 206 */ 207 mdev->limits.max_sg = min_t(int, dev_lim->max_sg, 208 (dev_lim->max_desc_sz - 209 sizeof (struct mthca_next_seg) - 210 (mthca_is_memfree(mdev) ? 211 sizeof (struct mthca_arbel_ud_seg) : 212 sizeof (struct mthca_tavor_ud_seg))) / 213 sizeof (struct mthca_data_seg)); 214 mdev->limits.max_wqes = dev_lim->max_qp_sz; 215 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 216 mdev->limits.reserved_qps = dev_lim->reserved_qps; 217 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 218 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 219 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 220 mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 221 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 222 /* 223 * Subtract 1 from the limit because we need to allocate a 224 * spare CQE so the HCA HW can tell the difference between an 225 * empty CQ and a full CQ. 226 */ 227 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 228 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 229 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 230 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 231 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 232 mdev->limits.reserved_uars = dev_lim->reserved_uars; 233 mdev->limits.reserved_pds = dev_lim->reserved_pds; 234 mdev->limits.port_width_cap = dev_lim->max_port_width; 235 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 236 mdev->limits.flags = dev_lim->flags; 237 /* 238 * For old FW that doesn't return static rate support, use a 239 * value of 0x3 (only static rate values of 0 or 1 are handled), 240 * except on Sinai, where even old FW can handle static rate 241 * values of 2 and 3. 242 */ 243 if (dev_lim->stat_rate_support) 244 mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 245 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 246 mdev->limits.stat_rate_support = 0xf; 247 else 248 mdev->limits.stat_rate_support = 0x3; 249 250 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 251 May be doable since hardware supports it for SRQ. 252 253 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 254 255 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 256 supported by driver. */ 257 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 258 IB_DEVICE_PORT_ACTIVE_EVENT | 259 IB_DEVICE_SYS_IMAGE_GUID | 260 IB_DEVICE_RC_RNR_NAK_GEN; 261 262 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 263 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 264 265 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 266 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 267 268 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 269 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 270 271 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 272 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 273 274 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 275 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 276 277 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 278 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 279 280 if (mthca_is_memfree(mdev)) 281 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM) 282 mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 283 284 return 0; 285} 286 287static int mthca_init_tavor(struct mthca_dev *mdev) 288{ 289 s64 size; 290 int err; 291 struct mthca_dev_lim dev_lim; 292 struct mthca_profile profile; 293 struct mthca_init_hca_param init_hca; 294 295 err = mthca_SYS_EN(mdev); 296 if (err) { 297 mthca_err(mdev, "SYS_EN command returned %d, aborting.\n", err); 298 return err; 299 } 300 301 err = mthca_QUERY_FW(mdev); 302 if (err) { 303 mthca_err(mdev, "QUERY_FW command returned %d," 304 " aborting.\n", err); 305 goto err_disable; 306 } 307 err = mthca_QUERY_DDR(mdev); 308 if (err) { 309 mthca_err(mdev, "QUERY_DDR command returned %d, aborting.\n", err); 310 goto err_disable; 311 } 312 313 err = mthca_dev_lim(mdev, &dev_lim); 314 if (err) { 315 mthca_err(mdev, "QUERY_DEV_LIM command returned %d, aborting.\n", err); 316 goto err_disable; 317 } 318 319 profile = hca_profile; 320 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 321 profile.uarc_size = 0; 322 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 323 profile.num_srq = dev_lim.max_srqs; 324 325 size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 326 if (size < 0) { 327 err = size; 328 goto err_disable; 329 } 330 331 err = mthca_INIT_HCA(mdev, &init_hca); 332 if (err) { 333 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err); 334 goto err_disable; 335 } 336 337 return 0; 338 339err_disable: 340 mthca_SYS_DIS(mdev); 341 342 return err; 343} 344 345static int mthca_load_fw(struct mthca_dev *mdev) 346{ 347 int err; 348 349 /* FIXME: use HCA-attached memory for FW if present */ 350 351 mdev->fw.arbel.fw_icm = 352 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 353 GFP_HIGHUSER | __GFP_NOWARN, 0); 354 if (!mdev->fw.arbel.fw_icm) { 355 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 356 return -ENOMEM; 357 } 358 359 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm); 360 if (err) { 361 mthca_err(mdev, "MAP_FA command returned %d, aborting.\n", err); 362 goto err_free; 363 } 364 err = mthca_RUN_FW(mdev); 365 if (err) { 366 mthca_err(mdev, "RUN_FW command returned %d, aborting.\n", err); 367 goto err_unmap_fa; 368 } 369 370 return 0; 371 372err_unmap_fa: 373 mthca_UNMAP_FA(mdev); 374 375err_free: 376 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 377 return err; 378} 379 380static int mthca_init_icm(struct mthca_dev *mdev, 381 struct mthca_dev_lim *dev_lim, 382 struct mthca_init_hca_param *init_hca, 383 u64 icm_size) 384{ 385 u64 aux_pages = 0; 386 int err; 387 388 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages); 389 if (err) { 390 mthca_err(mdev, "SET_ICM_SIZE command returned %d, aborting.\n", err); 391 return err; 392 } 393 394 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 395 (unsigned long long) icm_size >> 10, 396 (unsigned long long) aux_pages << 2); 397 398 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 399 GFP_HIGHUSER | __GFP_NOWARN, 0); 400 if (!mdev->fw.arbel.aux_icm) { 401 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 402 return -ENOMEM; 403 } 404 405 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm); 406 if (err) { 407 mthca_err(mdev, "MAP_ICM_AUX returned %d, aborting.\n", err); 408 goto err_free_aux; 409 } 410 411 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 412 if (err) { 413 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 414 goto err_unmap_aux; 415 } 416 417 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */ 418 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size, 419 dma_get_cache_alignment()) / mdev->limits.mtt_seg_size; 420 421 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 422 mdev->limits.mtt_seg_size, 423 mdev->limits.num_mtt_segs, 424 mdev->limits.reserved_mtts, 425 1, 0); 426 if (!mdev->mr_table.mtt_table) { 427 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 428 err = -ENOMEM; 429 goto err_unmap_eq; 430 } 431 432 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 433 dev_lim->mpt_entry_sz, 434 mdev->limits.num_mpts, 435 mdev->limits.reserved_mrws, 436 1, 1); 437 if (!mdev->mr_table.mpt_table) { 438 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 439 err = -ENOMEM; 440 goto err_unmap_mtt; 441 } 442 443 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 444 dev_lim->qpc_entry_sz, 445 mdev->limits.num_qps, 446 mdev->limits.reserved_qps, 447 0, 0); 448 if (!mdev->qp_table.qp_table) { 449 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 450 err = -ENOMEM; 451 goto err_unmap_mpt; 452 } 453 454 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 455 dev_lim->eqpc_entry_sz, 456 mdev->limits.num_qps, 457 mdev->limits.reserved_qps, 458 0, 0); 459 if (!mdev->qp_table.eqp_table) { 460 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 461 err = -ENOMEM; 462 goto err_unmap_qp; 463 } 464 465 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 466 MTHCA_RDB_ENTRY_SIZE, 467 mdev->limits.num_qps << 468 mdev->qp_table.rdb_shift, 0, 469 0, 0); 470 if (!mdev->qp_table.rdb_table) { 471 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 472 err = -ENOMEM; 473 goto err_unmap_eqp; 474 } 475 476 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 477 dev_lim->cqc_entry_sz, 478 mdev->limits.num_cqs, 479 mdev->limits.reserved_cqs, 480 0, 0); 481 if (!mdev->cq_table.table) { 482 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 483 err = -ENOMEM; 484 goto err_unmap_rdb; 485 } 486 487 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 488 mdev->srq_table.table = 489 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 490 dev_lim->srq_entry_sz, 491 mdev->limits.num_srqs, 492 mdev->limits.reserved_srqs, 493 0, 0); 494 if (!mdev->srq_table.table) { 495 mthca_err(mdev, "Failed to map SRQ context memory, " 496 "aborting.\n"); 497 err = -ENOMEM; 498 goto err_unmap_cq; 499 } 500 } 501 502 /* 503 * It's not strictly required, but for simplicity just map the 504 * whole multicast group table now. The table isn't very big 505 * and it's a lot easier than trying to track ref counts. 506 */ 507 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 508 MTHCA_MGM_ENTRY_SIZE, 509 mdev->limits.num_mgms + 510 mdev->limits.num_amgms, 511 mdev->limits.num_mgms + 512 mdev->limits.num_amgms, 513 0, 0); 514 if (!mdev->mcg_table.table) { 515 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 516 err = -ENOMEM; 517 goto err_unmap_srq; 518 } 519 520 return 0; 521 522err_unmap_srq: 523 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 524 mthca_free_icm_table(mdev, mdev->srq_table.table); 525 526err_unmap_cq: 527 mthca_free_icm_table(mdev, mdev->cq_table.table); 528 529err_unmap_rdb: 530 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 531 532err_unmap_eqp: 533 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 534 535err_unmap_qp: 536 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 537 538err_unmap_mpt: 539 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 540 541err_unmap_mtt: 542 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 543 544err_unmap_eq: 545 mthca_unmap_eq_icm(mdev); 546 547err_unmap_aux: 548 mthca_UNMAP_ICM_AUX(mdev); 549 550err_free_aux: 551 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 552 553 return err; 554} 555 556static void mthca_free_icms(struct mthca_dev *mdev) 557{ 558 559 mthca_free_icm_table(mdev, mdev->mcg_table.table); 560 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 561 mthca_free_icm_table(mdev, mdev->srq_table.table); 562 mthca_free_icm_table(mdev, mdev->cq_table.table); 563 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 564 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 565 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 566 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 567 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 568 mthca_unmap_eq_icm(mdev); 569 570 mthca_UNMAP_ICM_AUX(mdev); 571 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 572} 573 574static int mthca_init_arbel(struct mthca_dev *mdev) 575{ 576 struct mthca_dev_lim dev_lim; 577 struct mthca_profile profile; 578 struct mthca_init_hca_param init_hca; 579 s64 icm_size; 580 int err; 581 582 err = mthca_QUERY_FW(mdev); 583 if (err) { 584 mthca_err(mdev, "QUERY_FW command failed %d, aborting.\n", err); 585 return err; 586 } 587 588 err = mthca_ENABLE_LAM(mdev); 589 if (err == -EAGAIN) { 590 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 591 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 592 } else if (err) { 593 mthca_err(mdev, "ENABLE_LAM returned %d, aborting.\n", err); 594 return err; 595 } 596 597 err = mthca_load_fw(mdev); 598 if (err) { 599 mthca_err(mdev, "Loading FW returned %d, aborting.\n", err); 600 goto err_disable; 601 } 602 603 err = mthca_dev_lim(mdev, &dev_lim); 604 if (err) { 605 mthca_err(mdev, "QUERY_DEV_LIM returned %d, aborting.\n", err); 606 goto err_stop_fw; 607 } 608 609 profile = hca_profile; 610 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 611 profile.num_udav = 0; 612 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 613 profile.num_srq = dev_lim.max_srqs; 614 615 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 616 if (icm_size < 0) { 617 err = icm_size; 618 goto err_stop_fw; 619 } 620 621 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 622 if (err) 623 goto err_stop_fw; 624 625 err = mthca_INIT_HCA(mdev, &init_hca); 626 if (err) { 627 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err); 628 goto err_free_icm; 629 } 630 631 return 0; 632 633err_free_icm: 634 mthca_free_icms(mdev); 635 636err_stop_fw: 637 mthca_UNMAP_FA(mdev); 638 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 639 640err_disable: 641 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 642 mthca_DISABLE_LAM(mdev); 643 644 return err; 645} 646 647static void mthca_close_hca(struct mthca_dev *mdev) 648{ 649 mthca_CLOSE_HCA(mdev, 0); 650 651 if (mthca_is_memfree(mdev)) { 652 mthca_free_icms(mdev); 653 654 mthca_UNMAP_FA(mdev); 655 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 656 657 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 658 mthca_DISABLE_LAM(mdev); 659 } else 660 mthca_SYS_DIS(mdev); 661} 662 663static int mthca_init_hca(struct mthca_dev *mdev) 664{ 665 int err; 666 struct mthca_adapter adapter; 667 668 if (mthca_is_memfree(mdev)) 669 err = mthca_init_arbel(mdev); 670 else 671 err = mthca_init_tavor(mdev); 672 673 if (err) 674 return err; 675 676 err = mthca_QUERY_ADAPTER(mdev, &adapter); 677 if (err) { 678 mthca_err(mdev, "QUERY_ADAPTER command returned %d, aborting.\n", err); 679 goto err_close; 680 } 681 682 mdev->eq_table.inta_pin = adapter.inta_pin; 683 if (!mthca_is_memfree(mdev)) 684 mdev->rev_id = adapter.revision_id; 685 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 686 687 return 0; 688 689err_close: 690 mthca_close_hca(mdev); 691 return err; 692} 693 694static int mthca_setup_hca(struct mthca_dev *dev) 695{ 696 int err; 697 698 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 699 700 err = mthca_init_uar_table(dev); 701 if (err) { 702 mthca_err(dev, "Failed to initialize " 703 "user access region table, aborting.\n"); 704 return err; 705 } 706 707 err = mthca_uar_alloc(dev, &dev->driver_uar); 708 if (err) { 709 mthca_err(dev, "Failed to allocate driver access region, " 710 "aborting.\n"); 711 goto err_uar_table_free; 712 } 713 714 dev->kar = ioremap((phys_addr_t) dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 715 if (!dev->kar) { 716 mthca_err(dev, "Couldn't map kernel access region, " 717 "aborting.\n"); 718 err = -ENOMEM; 719 goto err_uar_free; 720 } 721 722 err = mthca_init_pd_table(dev); 723 if (err) { 724 mthca_err(dev, "Failed to initialize " 725 "protection domain table, aborting.\n"); 726 goto err_kar_unmap; 727 } 728 729 err = mthca_init_mr_table(dev); 730 if (err) { 731 mthca_err(dev, "Failed to initialize " 732 "memory region table, aborting.\n"); 733 goto err_pd_table_free; 734 } 735 736 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 737 if (err) { 738 mthca_err(dev, "Failed to create driver PD, " 739 "aborting.\n"); 740 goto err_mr_table_free; 741 } 742 743 err = mthca_init_eq_table(dev); 744 if (err) { 745 mthca_err(dev, "Failed to initialize " 746 "event queue table, aborting.\n"); 747 goto err_pd_free; 748 } 749 750 err = mthca_cmd_use_events(dev); 751 if (err) { 752 mthca_err(dev, "Failed to switch to event-driven " 753 "firmware commands, aborting.\n"); 754 goto err_eq_table_free; 755 } 756 757 err = mthca_NOP(dev); 758 if (err) { 759 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { 760 mthca_warn(dev, "NOP command failed to generate interrupt " 761 "(IRQ %d).\n", 762 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector); 763 mthca_warn(dev, "Trying again with MSI-X disabled.\n"); 764 } else { 765 mthca_err(dev, "NOP command failed to generate interrupt " 766 "(IRQ %d), aborting.\n", 767 dev->pdev->irq); 768 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 769 } 770 771 goto err_cmd_poll; 772 } 773 774 mthca_dbg(dev, "NOP command IRQ test passed\n"); 775 776 err = mthca_init_cq_table(dev); 777 if (err) { 778 mthca_err(dev, "Failed to initialize " 779 "completion queue table, aborting.\n"); 780 goto err_cmd_poll; 781 } 782 783 err = mthca_init_srq_table(dev); 784 if (err) { 785 mthca_err(dev, "Failed to initialize " 786 "shared receive queue table, aborting.\n"); 787 goto err_cq_table_free; 788 } 789 790 err = mthca_init_qp_table(dev); 791 if (err) { 792 mthca_err(dev, "Failed to initialize " 793 "queue pair table, aborting.\n"); 794 goto err_srq_table_free; 795 } 796 797 err = mthca_init_av_table(dev); 798 if (err) { 799 mthca_err(dev, "Failed to initialize " 800 "address vector table, aborting.\n"); 801 goto err_qp_table_free; 802 } 803 804 err = mthca_init_mcg_table(dev); 805 if (err) { 806 mthca_err(dev, "Failed to initialize " 807 "multicast group table, aborting.\n"); 808 goto err_av_table_free; 809 } 810 811 return 0; 812 813err_av_table_free: 814 mthca_cleanup_av_table(dev); 815 816err_qp_table_free: 817 mthca_cleanup_qp_table(dev); 818 819err_srq_table_free: 820 mthca_cleanup_srq_table(dev); 821 822err_cq_table_free: 823 mthca_cleanup_cq_table(dev); 824 825err_cmd_poll: 826 mthca_cmd_use_polling(dev); 827 828err_eq_table_free: 829 mthca_cleanup_eq_table(dev); 830 831err_pd_free: 832 mthca_pd_free(dev, &dev->driver_pd); 833 834err_mr_table_free: 835 mthca_cleanup_mr_table(dev); 836 837err_pd_table_free: 838 mthca_cleanup_pd_table(dev); 839 840err_kar_unmap: 841 iounmap(dev->kar); 842 843err_uar_free: 844 mthca_uar_free(dev, &dev->driver_uar); 845 846err_uar_table_free: 847 mthca_cleanup_uar_table(dev); 848 return err; 849} 850 851static int mthca_enable_msi_x(struct mthca_dev *mdev) 852{ 853 int err; 854 855 err = pci_alloc_irq_vectors(mdev->pdev, 3, 3, PCI_IRQ_MSIX); 856 if (err < 0) 857 return err; 858 859 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = 860 pci_irq_vector(mdev->pdev, 0); 861 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = 862 pci_irq_vector(mdev->pdev, 1); 863 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = 864 pci_irq_vector(mdev->pdev, 2); 865 866 return 0; 867} 868 869/* Types of supported HCA */ 870enum { 871 TAVOR, /* MT23108 */ 872 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 873 ARBEL_NATIVE, /* MT25208 with extended features */ 874 SINAI /* MT25204 */ 875}; 876 877#define MTHCA_FW_VER(major, minor, subminor) \ 878 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 879 880static struct { 881 u64 latest_fw; 882 u32 flags; 883} mthca_hca_table[] = { 884 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0), 885 .flags = 0 }, 886 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200), 887 .flags = MTHCA_FLAG_PCIE }, 888 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0), 889 .flags = MTHCA_FLAG_MEMFREE | 890 MTHCA_FLAG_PCIE }, 891 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0), 892 .flags = MTHCA_FLAG_MEMFREE | 893 MTHCA_FLAG_PCIE | 894 MTHCA_FLAG_SINAI_OPT } 895}; 896 897static int __mthca_init_one(struct pci_dev *pdev, int hca_type) 898{ 899 int ddr_hidden = 0; 900 int err; 901 struct mthca_dev *mdev; 902 903 printk(KERN_INFO PFX "Initializing %s\n", 904 pci_name(pdev)); 905 906 err = pci_enable_device(pdev); 907 if (err) { 908 dev_err(&pdev->dev, "Cannot enable PCI device, " 909 "aborting.\n"); 910 return err; 911 } 912 913 /* 914 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 915 * be present) 916 */ 917 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 918 pci_resource_len(pdev, 0) != 1 << 20) { 919 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 920 err = -ENODEV; 921 goto err_disable_pdev; 922 } 923 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 924 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 925 err = -ENODEV; 926 goto err_disable_pdev; 927 } 928 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 929 ddr_hidden = 1; 930 931 err = pci_request_regions(pdev, DRV_NAME); 932 if (err) { 933 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 934 "aborting.\n"); 935 goto err_disable_pdev; 936 } 937 938 pci_set_master(pdev); 939 940 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 941 if (err) { 942 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 943 goto err_free_res; 944 } 945 946 /* We can handle large RDMA requests, so allow larger segments. */ 947 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024); 948 949 mdev = ib_alloc_device(mthca_dev, ib_dev); 950 if (!mdev) { 951 dev_err(&pdev->dev, "Device struct alloc failed, " 952 "aborting.\n"); 953 err = -ENOMEM; 954 goto err_free_res; 955 } 956 957 mdev->pdev = pdev; 958 959 mdev->mthca_flags = mthca_hca_table[hca_type].flags; 960 if (ddr_hidden) 961 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 962 963 /* 964 * Now reset the HCA before we touch the PCI capabilities or 965 * attempt a firmware command, since a boot ROM may have left 966 * the HCA in an undefined state. 967 */ 968 err = mthca_reset(mdev); 969 if (err) { 970 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 971 goto err_free_dev; 972 } 973 974 err = mthca_cmd_init(mdev); 975 if (err) { 976 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 977 goto err_free_dev; 978 } 979 980 err = mthca_tune_pci(mdev); 981 if (err) 982 goto err_cmd; 983 984 err = mthca_init_hca(mdev); 985 if (err) 986 goto err_cmd; 987 988 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { 989 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", 990 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 991 (int) (mdev->fw_ver & 0xffff), 992 (int) (mthca_hca_table[hca_type].latest_fw >> 32), 993 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff, 994 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff)); 995 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 996 } 997 998 if (msi_x && !mthca_enable_msi_x(mdev)) 999 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1000 1001 err = mthca_setup_hca(mdev); 1002 if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) { 1003 pci_free_irq_vectors(pdev); 1004 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X; 1005 1006 err = mthca_setup_hca(mdev); 1007 } 1008 1009 if (err) 1010 goto err_close; 1011 1012 err = mthca_register_device(mdev); 1013 if (err) 1014 goto err_cleanup; 1015 1016 err = mthca_create_agents(mdev); 1017 if (err) 1018 goto err_unregister; 1019 1020 pci_set_drvdata(pdev, mdev); 1021 mdev->hca_type = hca_type; 1022 1023 mdev->active = true; 1024 1025 return 0; 1026 1027err_unregister: 1028 mthca_unregister_device(mdev); 1029 1030err_cleanup: 1031 mthca_cleanup_mcg_table(mdev); 1032 mthca_cleanup_av_table(mdev); 1033 mthca_cleanup_qp_table(mdev); 1034 mthca_cleanup_srq_table(mdev); 1035 mthca_cleanup_cq_table(mdev); 1036 mthca_cmd_use_polling(mdev); 1037 mthca_cleanup_eq_table(mdev); 1038 1039 mthca_pd_free(mdev, &mdev->driver_pd); 1040 1041 mthca_cleanup_mr_table(mdev); 1042 mthca_cleanup_pd_table(mdev); 1043 mthca_cleanup_uar_table(mdev); 1044 1045err_close: 1046 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1047 pci_free_irq_vectors(pdev); 1048 1049 mthca_close_hca(mdev); 1050 1051err_cmd: 1052 mthca_cmd_cleanup(mdev); 1053 1054err_free_dev: 1055 ib_dealloc_device(&mdev->ib_dev); 1056 1057err_free_res: 1058 pci_release_regions(pdev); 1059 1060err_disable_pdev: 1061 pci_disable_device(pdev); 1062 pci_set_drvdata(pdev, NULL); 1063 return err; 1064} 1065 1066static void __mthca_remove_one(struct pci_dev *pdev) 1067{ 1068 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1069 int p; 1070 1071 if (mdev) { 1072 mthca_free_agents(mdev); 1073 mthca_unregister_device(mdev); 1074 1075 for (p = 1; p <= mdev->limits.num_ports; ++p) 1076 mthca_CLOSE_IB(mdev, p); 1077 1078 mthca_cleanup_mcg_table(mdev); 1079 mthca_cleanup_av_table(mdev); 1080 mthca_cleanup_qp_table(mdev); 1081 mthca_cleanup_srq_table(mdev); 1082 mthca_cleanup_cq_table(mdev); 1083 mthca_cmd_use_polling(mdev); 1084 mthca_cleanup_eq_table(mdev); 1085 1086 mthca_pd_free(mdev, &mdev->driver_pd); 1087 1088 mthca_cleanup_mr_table(mdev); 1089 mthca_cleanup_pd_table(mdev); 1090 1091 iounmap(mdev->kar); 1092 mthca_uar_free(mdev, &mdev->driver_uar); 1093 mthca_cleanup_uar_table(mdev); 1094 mthca_close_hca(mdev); 1095 mthca_cmd_cleanup(mdev); 1096 1097 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1098 pci_free_irq_vectors(pdev); 1099 1100 ib_dealloc_device(&mdev->ib_dev); 1101 pci_release_regions(pdev); 1102 pci_disable_device(pdev); 1103 pci_set_drvdata(pdev, NULL); 1104 } 1105} 1106 1107int __mthca_restart_one(struct pci_dev *pdev) 1108{ 1109 struct mthca_dev *mdev; 1110 int hca_type; 1111 1112 mdev = pci_get_drvdata(pdev); 1113 if (!mdev) 1114 return -ENODEV; 1115 hca_type = mdev->hca_type; 1116 __mthca_remove_one(pdev); 1117 return __mthca_init_one(pdev, hca_type); 1118} 1119 1120static int mthca_init_one(struct pci_dev *pdev, const struct pci_device_id *id) 1121{ 1122 int ret; 1123 1124 mutex_lock(&mthca_device_mutex); 1125 1126 printk_once(KERN_INFO "%s", mthca_version); 1127 1128 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 1129 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 1130 pci_name(pdev), id->driver_data); 1131 mutex_unlock(&mthca_device_mutex); 1132 return -ENODEV; 1133 } 1134 1135 ret = __mthca_init_one(pdev, id->driver_data); 1136 1137 mutex_unlock(&mthca_device_mutex); 1138 1139 return ret; 1140} 1141 1142static void mthca_remove_one(struct pci_dev *pdev) 1143{ 1144 mutex_lock(&mthca_device_mutex); 1145 __mthca_remove_one(pdev); 1146 mutex_unlock(&mthca_device_mutex); 1147} 1148 1149static const struct pci_device_id mthca_pci_table[] = { 1150 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1151 .driver_data = TAVOR }, 1152 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1153 .driver_data = TAVOR }, 1154 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1155 .driver_data = ARBEL_COMPAT }, 1156 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1157 .driver_data = ARBEL_COMPAT }, 1158 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1159 .driver_data = ARBEL_NATIVE }, 1160 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1161 .driver_data = ARBEL_NATIVE }, 1162 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1163 .driver_data = SINAI }, 1164 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1165 .driver_data = SINAI }, 1166 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1167 .driver_data = SINAI }, 1168 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1169 .driver_data = SINAI }, 1170 { 0, } 1171}; 1172 1173MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1174 1175static struct pci_driver mthca_driver = { 1176 .name = DRV_NAME, 1177 .id_table = mthca_pci_table, 1178 .probe = mthca_init_one, 1179 .remove = mthca_remove_one, 1180}; 1181 1182static void __init __mthca_check_profile_val(const char *name, int *pval, 1183 int pval_default) 1184{ 1185 /* value must be positive and power of 2 */ 1186 int old_pval = *pval; 1187 1188 if (old_pval <= 0) 1189 *pval = pval_default; 1190 else 1191 *pval = roundup_pow_of_two(old_pval); 1192 1193 if (old_pval != *pval) { 1194 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n", 1195 old_pval, name); 1196 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval); 1197 } 1198} 1199 1200#define mthca_check_profile_val(name, default) \ 1201 __mthca_check_profile_val(#name, &hca_profile.name, default) 1202 1203static void __init mthca_validate_profile(void) 1204{ 1205 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP); 1206 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP); 1207 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ); 1208 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG); 1209 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT); 1210 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT); 1211 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV); 1212 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS); 1213 1214 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) { 1215 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n", 1216 hca_profile.fmr_reserved_mtts); 1217 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n", 1218 hca_profile.num_mtt); 1219 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2; 1220 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n", 1221 hca_profile.fmr_reserved_mtts); 1222 } 1223 1224 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) { 1225 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n", 1226 log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8)); 1227 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 1228 } 1229} 1230 1231static int __init mthca_init(void) 1232{ 1233 int ret; 1234 1235 mthca_validate_profile(); 1236 1237 ret = mthca_catas_init(); 1238 if (ret) 1239 return ret; 1240 1241 ret = pci_register_driver(&mthca_driver); 1242 if (ret < 0) { 1243 mthca_catas_cleanup(); 1244 return ret; 1245 } 1246 1247 return 0; 1248} 1249 1250static void __exit mthca_cleanup(void) 1251{ 1252 pci_unregister_driver(&mthca_driver); 1253 mthca_catas_cleanup(); 1254} 1255 1256module_init(mthca_init); 1257module_exit(mthca_cleanup); 1258