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 49 MODULE_AUTHOR("Roland Dreier"); 50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 51 MODULE_LICENSE("Dual BSD/GPL"); 52 MODULE_VERSION(DRV_VERSION); 53 54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 55 56 int mthca_debug_level = 0; 57 module_param_named(debug_level, mthca_debug_level, int, 0644); 58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 59 60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 61 62 #ifdef CONFIG_PCI_MSI 63 64 static int msi_x = 1; 65 module_param(msi_x, int, 0444); 66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 67 68 #else /* CONFIG_PCI_MSI */ 69 70 #define msi_x (0) 71 72 #endif /* CONFIG_PCI_MSI */ 73 74 static int tune_pci = 0; 75 module_param(tune_pci, int, 0444); 76 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 77 78 DEFINE_MUTEX(mthca_device_mutex); 79 80 #define MTHCA_DEFAULT_NUM_QP (1 << 16) 81 #define MTHCA_DEFAULT_RDB_PER_QP (1 << 2) 82 #define MTHCA_DEFAULT_NUM_CQ (1 << 16) 83 #define MTHCA_DEFAULT_NUM_MCG (1 << 13) 84 #define MTHCA_DEFAULT_NUM_MPT (1 << 17) 85 #define MTHCA_DEFAULT_NUM_MTT (1 << 20) 86 #define MTHCA_DEFAULT_NUM_UDAV (1 << 15) 87 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18) 88 #define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18) 89 90 static struct mthca_profile hca_profile = { 91 .num_qp = MTHCA_DEFAULT_NUM_QP, 92 .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP, 93 .num_cq = MTHCA_DEFAULT_NUM_CQ, 94 .num_mcg = MTHCA_DEFAULT_NUM_MCG, 95 .num_mpt = MTHCA_DEFAULT_NUM_MPT, 96 .num_mtt = MTHCA_DEFAULT_NUM_MTT, 97 .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */ 98 .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */ 99 .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */ 100 }; 101 102 module_param_named(num_qp, hca_profile.num_qp, int, 0444); 103 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA"); 104 105 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444); 106 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP"); 107 108 module_param_named(num_cq, hca_profile.num_cq, int, 0444); 109 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA"); 110 111 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444); 112 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA"); 113 114 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444); 115 MODULE_PARM_DESC(num_mpt, 116 "maximum number of memory protection table entries per HCA"); 117 118 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444); 119 MODULE_PARM_DESC(num_mtt, 120 "maximum number of memory translation table segments per HCA"); 121 122 module_param_named(num_udav, hca_profile.num_udav, int, 0444); 123 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA"); 124 125 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444); 126 MODULE_PARM_DESC(fmr_reserved_mtts, 127 "number of memory translation table segments reserved for FMR"); 128 129 static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 130 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444); 131 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)"); 132 133 static char mthca_version[] = 134 DRV_NAME ": Mellanox InfiniBand HCA driver v" 135 DRV_VERSION " (" DRV_RELDATE ")\n"; 136 137 static int mthca_tune_pci(struct mthca_dev *mdev) 138 { 139 if (!tune_pci) 140 return 0; 141 142 /* First try to max out Read Byte Count */ 143 if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) { 144 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) { 145 mthca_err(mdev, "Couldn't set PCI-X max read count, " 146 "aborting.\n"); 147 return -ENODEV; 148 } 149 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 150 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 151 152 if (pci_is_pcie(mdev->pdev)) { 153 if (pcie_set_readrq(mdev->pdev, 4096)) { 154 mthca_err(mdev, "Couldn't write PCI Express read request, " 155 "aborting.\n"); 156 return -ENODEV; 157 } 158 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 159 mthca_info(mdev, "No PCI Express capability, " 160 "not setting Max Read Request Size.\n"); 161 162 return 0; 163 } 164 165 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 166 { 167 int err; 168 169 mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8; 170 err = mthca_QUERY_DEV_LIM(mdev, dev_lim); 171 if (err) { 172 mthca_err(mdev, "QUERY_DEV_LIM command returned %d" 173 ", aborting.\n", err); 174 return err; 175 } 176 if (dev_lim->min_page_sz > PAGE_SIZE) { 177 mthca_err(mdev, "HCA minimum page size of %d bigger than " 178 "kernel PAGE_SIZE of %ld, aborting.\n", 179 dev_lim->min_page_sz, PAGE_SIZE); 180 return -ENODEV; 181 } 182 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 183 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 184 "aborting.\n", 185 dev_lim->num_ports, MTHCA_MAX_PORTS); 186 return -ENODEV; 187 } 188 189 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { 190 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " 191 "PCI resource 2 size of 0x%llx, aborting.\n", 192 dev_lim->uar_size, 193 (unsigned long long)pci_resource_len(mdev->pdev, 2)); 194 return -ENODEV; 195 } 196 197 mdev->limits.num_ports = dev_lim->num_ports; 198 mdev->limits.vl_cap = dev_lim->max_vl; 199 mdev->limits.mtu_cap = dev_lim->max_mtu; 200 mdev->limits.gid_table_len = dev_lim->max_gids; 201 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 202 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 203 /* 204 * Need to allow for worst case send WQE overhead and check 205 * whether max_desc_sz imposes a lower limit than max_sg; UD 206 * send has the biggest overhead. 207 */ 208 mdev->limits.max_sg = min_t(int, dev_lim->max_sg, 209 (dev_lim->max_desc_sz - 210 sizeof (struct mthca_next_seg) - 211 (mthca_is_memfree(mdev) ? 212 sizeof (struct mthca_arbel_ud_seg) : 213 sizeof (struct mthca_tavor_ud_seg))) / 214 sizeof (struct mthca_data_seg)); 215 mdev->limits.max_wqes = dev_lim->max_qp_sz; 216 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 217 mdev->limits.reserved_qps = dev_lim->reserved_qps; 218 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 219 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 220 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 221 mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 222 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 223 /* 224 * Subtract 1 from the limit because we need to allocate a 225 * spare CQE so the HCA HW can tell the difference between an 226 * empty CQ and a full CQ. 227 */ 228 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 229 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 230 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 231 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 232 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 233 mdev->limits.reserved_uars = dev_lim->reserved_uars; 234 mdev->limits.reserved_pds = dev_lim->reserved_pds; 235 mdev->limits.port_width_cap = dev_lim->max_port_width; 236 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 237 mdev->limits.flags = dev_lim->flags; 238 /* 239 * For old FW that doesn't return static rate support, use a 240 * value of 0x3 (only static rate values of 0 or 1 are handled), 241 * except on Sinai, where even old FW can handle static rate 242 * values of 2 and 3. 243 */ 244 if (dev_lim->stat_rate_support) 245 mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 246 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 247 mdev->limits.stat_rate_support = 0xf; 248 else 249 mdev->limits.stat_rate_support = 0x3; 250 251 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 252 May be doable since hardware supports it for SRQ. 253 254 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 255 256 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 257 supported by driver. */ 258 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 259 IB_DEVICE_PORT_ACTIVE_EVENT | 260 IB_DEVICE_SYS_IMAGE_GUID | 261 IB_DEVICE_RC_RNR_NAK_GEN; 262 263 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 264 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 265 266 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 267 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 268 269 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 270 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 271 272 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 273 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 274 275 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 276 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 277 278 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 279 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 280 281 if (mthca_is_memfree(mdev)) 282 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM) 283 mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 284 285 return 0; 286 } 287 288 static int mthca_init_tavor(struct mthca_dev *mdev) 289 { 290 s64 size; 291 int err; 292 struct mthca_dev_lim dev_lim; 293 struct mthca_profile profile; 294 struct mthca_init_hca_param init_hca; 295 296 err = mthca_SYS_EN(mdev); 297 if (err) { 298 mthca_err(mdev, "SYS_EN command returned %d, aborting.\n", err); 299 return err; 300 } 301 302 err = mthca_QUERY_FW(mdev); 303 if (err) { 304 mthca_err(mdev, "QUERY_FW command returned %d," 305 " aborting.\n", err); 306 goto err_disable; 307 } 308 err = mthca_QUERY_DDR(mdev); 309 if (err) { 310 mthca_err(mdev, "QUERY_DDR command returned %d, aborting.\n", err); 311 goto err_disable; 312 } 313 314 err = mthca_dev_lim(mdev, &dev_lim); 315 if (err) { 316 mthca_err(mdev, "QUERY_DEV_LIM command returned %d, aborting.\n", err); 317 goto err_disable; 318 } 319 320 profile = hca_profile; 321 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 322 profile.uarc_size = 0; 323 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 324 profile.num_srq = dev_lim.max_srqs; 325 326 size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 327 if (size < 0) { 328 err = size; 329 goto err_disable; 330 } 331 332 err = mthca_INIT_HCA(mdev, &init_hca); 333 if (err) { 334 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err); 335 goto err_disable; 336 } 337 338 return 0; 339 340 err_disable: 341 mthca_SYS_DIS(mdev); 342 343 return err; 344 } 345 346 static int mthca_load_fw(struct mthca_dev *mdev) 347 { 348 int err; 349 350 /* FIXME: use HCA-attached memory for FW if present */ 351 352 mdev->fw.arbel.fw_icm = 353 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 354 GFP_HIGHUSER | __GFP_NOWARN, 0); 355 if (!mdev->fw.arbel.fw_icm) { 356 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 357 return -ENOMEM; 358 } 359 360 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm); 361 if (err) { 362 mthca_err(mdev, "MAP_FA command returned %d, aborting.\n", err); 363 goto err_free; 364 } 365 err = mthca_RUN_FW(mdev); 366 if (err) { 367 mthca_err(mdev, "RUN_FW command returned %d, aborting.\n", err); 368 goto err_unmap_fa; 369 } 370 371 return 0; 372 373 err_unmap_fa: 374 mthca_UNMAP_FA(mdev); 375 376 err_free: 377 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 378 return err; 379 } 380 381 static int mthca_init_icm(struct mthca_dev *mdev, 382 struct mthca_dev_lim *dev_lim, 383 struct mthca_init_hca_param *init_hca, 384 u64 icm_size) 385 { 386 u64 aux_pages; 387 int err; 388 389 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages); 390 if (err) { 391 mthca_err(mdev, "SET_ICM_SIZE command returned %d, aborting.\n", err); 392 return err; 393 } 394 395 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 396 (unsigned long long) icm_size >> 10, 397 (unsigned long long) aux_pages << 2); 398 399 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 400 GFP_HIGHUSER | __GFP_NOWARN, 0); 401 if (!mdev->fw.arbel.aux_icm) { 402 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 403 return -ENOMEM; 404 } 405 406 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm); 407 if (err) { 408 mthca_err(mdev, "MAP_ICM_AUX returned %d, aborting.\n", err); 409 goto err_free_aux; 410 } 411 412 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 413 if (err) { 414 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 415 goto err_unmap_aux; 416 } 417 418 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */ 419 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size, 420 dma_get_cache_alignment()) / mdev->limits.mtt_seg_size; 421 422 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 423 mdev->limits.mtt_seg_size, 424 mdev->limits.num_mtt_segs, 425 mdev->limits.reserved_mtts, 426 1, 0); 427 if (!mdev->mr_table.mtt_table) { 428 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 429 err = -ENOMEM; 430 goto err_unmap_eq; 431 } 432 433 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 434 dev_lim->mpt_entry_sz, 435 mdev->limits.num_mpts, 436 mdev->limits.reserved_mrws, 437 1, 1); 438 if (!mdev->mr_table.mpt_table) { 439 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 440 err = -ENOMEM; 441 goto err_unmap_mtt; 442 } 443 444 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 445 dev_lim->qpc_entry_sz, 446 mdev->limits.num_qps, 447 mdev->limits.reserved_qps, 448 0, 0); 449 if (!mdev->qp_table.qp_table) { 450 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 451 err = -ENOMEM; 452 goto err_unmap_mpt; 453 } 454 455 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 456 dev_lim->eqpc_entry_sz, 457 mdev->limits.num_qps, 458 mdev->limits.reserved_qps, 459 0, 0); 460 if (!mdev->qp_table.eqp_table) { 461 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 462 err = -ENOMEM; 463 goto err_unmap_qp; 464 } 465 466 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 467 MTHCA_RDB_ENTRY_SIZE, 468 mdev->limits.num_qps << 469 mdev->qp_table.rdb_shift, 0, 470 0, 0); 471 if (!mdev->qp_table.rdb_table) { 472 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 473 err = -ENOMEM; 474 goto err_unmap_eqp; 475 } 476 477 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 478 dev_lim->cqc_entry_sz, 479 mdev->limits.num_cqs, 480 mdev->limits.reserved_cqs, 481 0, 0); 482 if (!mdev->cq_table.table) { 483 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 484 err = -ENOMEM; 485 goto err_unmap_rdb; 486 } 487 488 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 489 mdev->srq_table.table = 490 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 491 dev_lim->srq_entry_sz, 492 mdev->limits.num_srqs, 493 mdev->limits.reserved_srqs, 494 0, 0); 495 if (!mdev->srq_table.table) { 496 mthca_err(mdev, "Failed to map SRQ context memory, " 497 "aborting.\n"); 498 err = -ENOMEM; 499 goto err_unmap_cq; 500 } 501 } 502 503 /* 504 * It's not strictly required, but for simplicity just map the 505 * whole multicast group table now. The table isn't very big 506 * and it's a lot easier than trying to track ref counts. 507 */ 508 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 509 MTHCA_MGM_ENTRY_SIZE, 510 mdev->limits.num_mgms + 511 mdev->limits.num_amgms, 512 mdev->limits.num_mgms + 513 mdev->limits.num_amgms, 514 0, 0); 515 if (!mdev->mcg_table.table) { 516 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 517 err = -ENOMEM; 518 goto err_unmap_srq; 519 } 520 521 return 0; 522 523 err_unmap_srq: 524 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 525 mthca_free_icm_table(mdev, mdev->srq_table.table); 526 527 err_unmap_cq: 528 mthca_free_icm_table(mdev, mdev->cq_table.table); 529 530 err_unmap_rdb: 531 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 532 533 err_unmap_eqp: 534 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 535 536 err_unmap_qp: 537 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 538 539 err_unmap_mpt: 540 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 541 542 err_unmap_mtt: 543 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 544 545 err_unmap_eq: 546 mthca_unmap_eq_icm(mdev); 547 548 err_unmap_aux: 549 mthca_UNMAP_ICM_AUX(mdev); 550 551 err_free_aux: 552 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 553 554 return err; 555 } 556 557 static void mthca_free_icms(struct mthca_dev *mdev) 558 { 559 560 mthca_free_icm_table(mdev, mdev->mcg_table.table); 561 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 562 mthca_free_icm_table(mdev, mdev->srq_table.table); 563 mthca_free_icm_table(mdev, mdev->cq_table.table); 564 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 565 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 566 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 567 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 568 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 569 mthca_unmap_eq_icm(mdev); 570 571 mthca_UNMAP_ICM_AUX(mdev); 572 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 573 } 574 575 static int mthca_init_arbel(struct mthca_dev *mdev) 576 { 577 struct mthca_dev_lim dev_lim; 578 struct mthca_profile profile; 579 struct mthca_init_hca_param init_hca; 580 s64 icm_size; 581 int err; 582 583 err = mthca_QUERY_FW(mdev); 584 if (err) { 585 mthca_err(mdev, "QUERY_FW command failed %d, aborting.\n", err); 586 return err; 587 } 588 589 err = mthca_ENABLE_LAM(mdev); 590 if (err == -EAGAIN) { 591 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 592 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 593 } else if (err) { 594 mthca_err(mdev, "ENABLE_LAM returned %d, aborting.\n", err); 595 return err; 596 } 597 598 err = mthca_load_fw(mdev); 599 if (err) { 600 mthca_err(mdev, "Loading FW returned %d, aborting.\n", err); 601 goto err_disable; 602 } 603 604 err = mthca_dev_lim(mdev, &dev_lim); 605 if (err) { 606 mthca_err(mdev, "QUERY_DEV_LIM returned %d, aborting.\n", err); 607 goto err_stop_fw; 608 } 609 610 profile = hca_profile; 611 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 612 profile.num_udav = 0; 613 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 614 profile.num_srq = dev_lim.max_srqs; 615 616 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 617 if (icm_size < 0) { 618 err = icm_size; 619 goto err_stop_fw; 620 } 621 622 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 623 if (err) 624 goto err_stop_fw; 625 626 err = mthca_INIT_HCA(mdev, &init_hca); 627 if (err) { 628 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err); 629 goto err_free_icm; 630 } 631 632 return 0; 633 634 err_free_icm: 635 mthca_free_icms(mdev); 636 637 err_stop_fw: 638 mthca_UNMAP_FA(mdev); 639 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 640 641 err_disable: 642 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 643 mthca_DISABLE_LAM(mdev); 644 645 return err; 646 } 647 648 static void mthca_close_hca(struct mthca_dev *mdev) 649 { 650 mthca_CLOSE_HCA(mdev, 0); 651 652 if (mthca_is_memfree(mdev)) { 653 mthca_free_icms(mdev); 654 655 mthca_UNMAP_FA(mdev); 656 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 657 658 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 659 mthca_DISABLE_LAM(mdev); 660 } else 661 mthca_SYS_DIS(mdev); 662 } 663 664 static int mthca_init_hca(struct mthca_dev *mdev) 665 { 666 int err; 667 struct mthca_adapter adapter; 668 669 if (mthca_is_memfree(mdev)) 670 err = mthca_init_arbel(mdev); 671 else 672 err = mthca_init_tavor(mdev); 673 674 if (err) 675 return err; 676 677 err = mthca_QUERY_ADAPTER(mdev, &adapter); 678 if (err) { 679 mthca_err(mdev, "QUERY_ADAPTER command returned %d, aborting.\n", err); 680 goto err_close; 681 } 682 683 mdev->eq_table.inta_pin = adapter.inta_pin; 684 if (!mthca_is_memfree(mdev)) 685 mdev->rev_id = adapter.revision_id; 686 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 687 688 return 0; 689 690 err_close: 691 mthca_close_hca(mdev); 692 return err; 693 } 694 695 static int mthca_setup_hca(struct mthca_dev *dev) 696 { 697 int err; 698 699 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 700 701 err = mthca_init_uar_table(dev); 702 if (err) { 703 mthca_err(dev, "Failed to initialize " 704 "user access region table, aborting.\n"); 705 return err; 706 } 707 708 err = mthca_uar_alloc(dev, &dev->driver_uar); 709 if (err) { 710 mthca_err(dev, "Failed to allocate driver access region, " 711 "aborting.\n"); 712 goto err_uar_table_free; 713 } 714 715 dev->kar = ioremap((phys_addr_t) dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 716 if (!dev->kar) { 717 mthca_err(dev, "Couldn't map kernel access region, " 718 "aborting.\n"); 719 err = -ENOMEM; 720 goto err_uar_free; 721 } 722 723 err = mthca_init_pd_table(dev); 724 if (err) { 725 mthca_err(dev, "Failed to initialize " 726 "protection domain table, aborting.\n"); 727 goto err_kar_unmap; 728 } 729 730 err = mthca_init_mr_table(dev); 731 if (err) { 732 mthca_err(dev, "Failed to initialize " 733 "memory region table, aborting.\n"); 734 goto err_pd_table_free; 735 } 736 737 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 738 if (err) { 739 mthca_err(dev, "Failed to create driver PD, " 740 "aborting.\n"); 741 goto err_mr_table_free; 742 } 743 744 err = mthca_init_eq_table(dev); 745 if (err) { 746 mthca_err(dev, "Failed to initialize " 747 "event queue table, aborting.\n"); 748 goto err_pd_free; 749 } 750 751 err = mthca_cmd_use_events(dev); 752 if (err) { 753 mthca_err(dev, "Failed to switch to event-driven " 754 "firmware commands, aborting.\n"); 755 goto err_eq_table_free; 756 } 757 758 err = mthca_NOP(dev); 759 if (err) { 760 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) { 761 mthca_warn(dev, "NOP command failed to generate interrupt " 762 "(IRQ %d).\n", 763 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector); 764 mthca_warn(dev, "Trying again with MSI-X disabled.\n"); 765 } else { 766 mthca_err(dev, "NOP command failed to generate interrupt " 767 "(IRQ %d), aborting.\n", 768 dev->pdev->irq); 769 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 770 } 771 772 goto err_cmd_poll; 773 } 774 775 mthca_dbg(dev, "NOP command IRQ test passed\n"); 776 777 err = mthca_init_cq_table(dev); 778 if (err) { 779 mthca_err(dev, "Failed to initialize " 780 "completion queue table, aborting.\n"); 781 goto err_cmd_poll; 782 } 783 784 err = mthca_init_srq_table(dev); 785 if (err) { 786 mthca_err(dev, "Failed to initialize " 787 "shared receive queue table, aborting.\n"); 788 goto err_cq_table_free; 789 } 790 791 err = mthca_init_qp_table(dev); 792 if (err) { 793 mthca_err(dev, "Failed to initialize " 794 "queue pair table, aborting.\n"); 795 goto err_srq_table_free; 796 } 797 798 err = mthca_init_av_table(dev); 799 if (err) { 800 mthca_err(dev, "Failed to initialize " 801 "address vector table, aborting.\n"); 802 goto err_qp_table_free; 803 } 804 805 err = mthca_init_mcg_table(dev); 806 if (err) { 807 mthca_err(dev, "Failed to initialize " 808 "multicast group table, aborting.\n"); 809 goto err_av_table_free; 810 } 811 812 return 0; 813 814 err_av_table_free: 815 mthca_cleanup_av_table(dev); 816 817 err_qp_table_free: 818 mthca_cleanup_qp_table(dev); 819 820 err_srq_table_free: 821 mthca_cleanup_srq_table(dev); 822 823 err_cq_table_free: 824 mthca_cleanup_cq_table(dev); 825 826 err_cmd_poll: 827 mthca_cmd_use_polling(dev); 828 829 err_eq_table_free: 830 mthca_cleanup_eq_table(dev); 831 832 err_pd_free: 833 mthca_pd_free(dev, &dev->driver_pd); 834 835 err_mr_table_free: 836 mthca_cleanup_mr_table(dev); 837 838 err_pd_table_free: 839 mthca_cleanup_pd_table(dev); 840 841 err_kar_unmap: 842 iounmap(dev->kar); 843 844 err_uar_free: 845 mthca_uar_free(dev, &dev->driver_uar); 846 847 err_uar_table_free: 848 mthca_cleanup_uar_table(dev); 849 return err; 850 } 851 852 static int mthca_enable_msi_x(struct mthca_dev *mdev) 853 { 854 int err; 855 856 err = pci_alloc_irq_vectors(mdev->pdev, 3, 3, PCI_IRQ_MSIX); 857 if (err < 0) 858 return err; 859 860 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = 861 pci_irq_vector(mdev->pdev, 0); 862 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = 863 pci_irq_vector(mdev->pdev, 1); 864 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = 865 pci_irq_vector(mdev->pdev, 2); 866 867 return 0; 868 } 869 870 /* Types of supported HCA */ 871 enum { 872 TAVOR, /* MT23108 */ 873 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 874 ARBEL_NATIVE, /* MT25208 with extended features */ 875 SINAI /* MT25204 */ 876 }; 877 878 #define MTHCA_FW_VER(major, minor, subminor) \ 879 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 880 881 static struct { 882 u64 latest_fw; 883 u32 flags; 884 } mthca_hca_table[] = { 885 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0), 886 .flags = 0 }, 887 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200), 888 .flags = MTHCA_FLAG_PCIE }, 889 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0), 890 .flags = MTHCA_FLAG_MEMFREE | 891 MTHCA_FLAG_PCIE }, 892 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0), 893 .flags = MTHCA_FLAG_MEMFREE | 894 MTHCA_FLAG_PCIE | 895 MTHCA_FLAG_SINAI_OPT } 896 }; 897 898 static int __mthca_init_one(struct pci_dev *pdev, int hca_type) 899 { 900 int ddr_hidden = 0; 901 int err; 902 struct mthca_dev *mdev; 903 904 printk(KERN_INFO PFX "Initializing %s\n", 905 pci_name(pdev)); 906 907 err = pci_enable_device(pdev); 908 if (err) { 909 dev_err(&pdev->dev, "Cannot enable PCI device, " 910 "aborting.\n"); 911 return err; 912 } 913 914 /* 915 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 916 * be present) 917 */ 918 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 919 pci_resource_len(pdev, 0) != 1 << 20) { 920 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 921 err = -ENODEV; 922 goto err_disable_pdev; 923 } 924 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 925 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 926 err = -ENODEV; 927 goto err_disable_pdev; 928 } 929 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 930 ddr_hidden = 1; 931 932 err = pci_request_regions(pdev, DRV_NAME); 933 if (err) { 934 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 935 "aborting.\n"); 936 goto err_disable_pdev; 937 } 938 939 pci_set_master(pdev); 940 941 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 942 if (err) { 943 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 944 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 945 if (err) { 946 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 947 goto err_free_res; 948 } 949 } 950 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 951 if (err) { 952 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 953 "consistent PCI DMA mask.\n"); 954 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 955 if (err) { 956 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 957 "aborting.\n"); 958 goto err_free_res; 959 } 960 } 961 962 /* We can handle large RDMA requests, so allow larger segments. */ 963 dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024); 964 965 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 966 if (!mdev) { 967 dev_err(&pdev->dev, "Device struct alloc failed, " 968 "aborting.\n"); 969 err = -ENOMEM; 970 goto err_free_res; 971 } 972 973 mdev->pdev = pdev; 974 975 mdev->mthca_flags = mthca_hca_table[hca_type].flags; 976 if (ddr_hidden) 977 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 978 979 /* 980 * Now reset the HCA before we touch the PCI capabilities or 981 * attempt a firmware command, since a boot ROM may have left 982 * the HCA in an undefined state. 983 */ 984 err = mthca_reset(mdev); 985 if (err) { 986 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 987 goto err_free_dev; 988 } 989 990 if (mthca_cmd_init(mdev)) { 991 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 992 goto err_free_dev; 993 } 994 995 err = mthca_tune_pci(mdev); 996 if (err) 997 goto err_cmd; 998 999 err = mthca_init_hca(mdev); 1000 if (err) 1001 goto err_cmd; 1002 1003 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { 1004 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", 1005 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1006 (int) (mdev->fw_ver & 0xffff), 1007 (int) (mthca_hca_table[hca_type].latest_fw >> 32), 1008 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff, 1009 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff)); 1010 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1011 } 1012 1013 if (msi_x && !mthca_enable_msi_x(mdev)) 1014 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1015 1016 err = mthca_setup_hca(mdev); 1017 if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) { 1018 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1019 pci_free_irq_vectors(pdev); 1020 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X; 1021 1022 err = mthca_setup_hca(mdev); 1023 } 1024 1025 if (err) 1026 goto err_close; 1027 1028 err = mthca_register_device(mdev); 1029 if (err) 1030 goto err_cleanup; 1031 1032 err = mthca_create_agents(mdev); 1033 if (err) 1034 goto err_unregister; 1035 1036 pci_set_drvdata(pdev, mdev); 1037 mdev->hca_type = hca_type; 1038 1039 mdev->active = true; 1040 1041 return 0; 1042 1043 err_unregister: 1044 mthca_unregister_device(mdev); 1045 1046 err_cleanup: 1047 mthca_cleanup_mcg_table(mdev); 1048 mthca_cleanup_av_table(mdev); 1049 mthca_cleanup_qp_table(mdev); 1050 mthca_cleanup_srq_table(mdev); 1051 mthca_cleanup_cq_table(mdev); 1052 mthca_cmd_use_polling(mdev); 1053 mthca_cleanup_eq_table(mdev); 1054 1055 mthca_pd_free(mdev, &mdev->driver_pd); 1056 1057 mthca_cleanup_mr_table(mdev); 1058 mthca_cleanup_pd_table(mdev); 1059 mthca_cleanup_uar_table(mdev); 1060 1061 err_close: 1062 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1063 pci_free_irq_vectors(pdev); 1064 1065 mthca_close_hca(mdev); 1066 1067 err_cmd: 1068 mthca_cmd_cleanup(mdev); 1069 1070 err_free_dev: 1071 ib_dealloc_device(&mdev->ib_dev); 1072 1073 err_free_res: 1074 pci_release_regions(pdev); 1075 1076 err_disable_pdev: 1077 pci_disable_device(pdev); 1078 pci_set_drvdata(pdev, NULL); 1079 return err; 1080 } 1081 1082 static void __mthca_remove_one(struct pci_dev *pdev) 1083 { 1084 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1085 int p; 1086 1087 if (mdev) { 1088 mthca_free_agents(mdev); 1089 mthca_unregister_device(mdev); 1090 1091 for (p = 1; p <= mdev->limits.num_ports; ++p) 1092 mthca_CLOSE_IB(mdev, p); 1093 1094 mthca_cleanup_mcg_table(mdev); 1095 mthca_cleanup_av_table(mdev); 1096 mthca_cleanup_qp_table(mdev); 1097 mthca_cleanup_srq_table(mdev); 1098 mthca_cleanup_cq_table(mdev); 1099 mthca_cmd_use_polling(mdev); 1100 mthca_cleanup_eq_table(mdev); 1101 1102 mthca_pd_free(mdev, &mdev->driver_pd); 1103 1104 mthca_cleanup_mr_table(mdev); 1105 mthca_cleanup_pd_table(mdev); 1106 1107 iounmap(mdev->kar); 1108 mthca_uar_free(mdev, &mdev->driver_uar); 1109 mthca_cleanup_uar_table(mdev); 1110 mthca_close_hca(mdev); 1111 mthca_cmd_cleanup(mdev); 1112 1113 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1114 pci_free_irq_vectors(pdev); 1115 1116 ib_dealloc_device(&mdev->ib_dev); 1117 pci_release_regions(pdev); 1118 pci_disable_device(pdev); 1119 pci_set_drvdata(pdev, NULL); 1120 } 1121 } 1122 1123 int __mthca_restart_one(struct pci_dev *pdev) 1124 { 1125 struct mthca_dev *mdev; 1126 int hca_type; 1127 1128 mdev = pci_get_drvdata(pdev); 1129 if (!mdev) 1130 return -ENODEV; 1131 hca_type = mdev->hca_type; 1132 __mthca_remove_one(pdev); 1133 return __mthca_init_one(pdev, hca_type); 1134 } 1135 1136 static int mthca_init_one(struct pci_dev *pdev, const struct pci_device_id *id) 1137 { 1138 int ret; 1139 1140 mutex_lock(&mthca_device_mutex); 1141 1142 printk_once(KERN_INFO "%s", mthca_version); 1143 1144 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 1145 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 1146 pci_name(pdev), id->driver_data); 1147 mutex_unlock(&mthca_device_mutex); 1148 return -ENODEV; 1149 } 1150 1151 ret = __mthca_init_one(pdev, id->driver_data); 1152 1153 mutex_unlock(&mthca_device_mutex); 1154 1155 return ret; 1156 } 1157 1158 static void mthca_remove_one(struct pci_dev *pdev) 1159 { 1160 mutex_lock(&mthca_device_mutex); 1161 __mthca_remove_one(pdev); 1162 mutex_unlock(&mthca_device_mutex); 1163 } 1164 1165 static struct pci_device_id mthca_pci_table[] = { 1166 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1167 .driver_data = TAVOR }, 1168 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1169 .driver_data = TAVOR }, 1170 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1171 .driver_data = ARBEL_COMPAT }, 1172 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1173 .driver_data = ARBEL_COMPAT }, 1174 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1175 .driver_data = ARBEL_NATIVE }, 1176 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1177 .driver_data = ARBEL_NATIVE }, 1178 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1179 .driver_data = SINAI }, 1180 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1181 .driver_data = SINAI }, 1182 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1183 .driver_data = SINAI }, 1184 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1185 .driver_data = SINAI }, 1186 { 0, } 1187 }; 1188 1189 MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1190 1191 static struct pci_driver mthca_driver = { 1192 .name = DRV_NAME, 1193 .id_table = mthca_pci_table, 1194 .probe = mthca_init_one, 1195 .remove = mthca_remove_one, 1196 }; 1197 1198 static void __init __mthca_check_profile_val(const char *name, int *pval, 1199 int pval_default) 1200 { 1201 /* value must be positive and power of 2 */ 1202 int old_pval = *pval; 1203 1204 if (old_pval <= 0) 1205 *pval = pval_default; 1206 else 1207 *pval = roundup_pow_of_two(old_pval); 1208 1209 if (old_pval != *pval) { 1210 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n", 1211 old_pval, name); 1212 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval); 1213 } 1214 } 1215 1216 #define mthca_check_profile_val(name, default) \ 1217 __mthca_check_profile_val(#name, &hca_profile.name, default) 1218 1219 static void __init mthca_validate_profile(void) 1220 { 1221 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP); 1222 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP); 1223 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ); 1224 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG); 1225 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT); 1226 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT); 1227 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV); 1228 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS); 1229 1230 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) { 1231 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n", 1232 hca_profile.fmr_reserved_mtts); 1233 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n", 1234 hca_profile.num_mtt); 1235 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2; 1236 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n", 1237 hca_profile.fmr_reserved_mtts); 1238 } 1239 1240 if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) { 1241 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n", 1242 log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8)); 1243 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8); 1244 } 1245 } 1246 1247 static int __init mthca_init(void) 1248 { 1249 int ret; 1250 1251 mthca_validate_profile(); 1252 1253 ret = mthca_catas_init(); 1254 if (ret) 1255 return ret; 1256 1257 ret = pci_register_driver(&mthca_driver); 1258 if (ret < 0) { 1259 mthca_catas_cleanup(); 1260 return ret; 1261 } 1262 1263 return 0; 1264 } 1265 1266 static void __exit mthca_cleanup(void) 1267 { 1268 pci_unregister_driver(&mthca_driver); 1269 mthca_catas_cleanup(); 1270 } 1271 1272 module_init(mthca_init); 1273 module_exit(mthca_cleanup); 1274