mthca_main.c revision e4daf738683d9e87caf12f4249268d3c9ed2e00f
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 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $ 35 */ 36 37#include <linux/module.h> 38#include <linux/init.h> 39#include <linux/errno.h> 40#include <linux/pci.h> 41#include <linux/interrupt.h> 42 43#include "mthca_dev.h" 44#include "mthca_config_reg.h" 45#include "mthca_cmd.h" 46#include "mthca_profile.h" 47#include "mthca_memfree.h" 48 49MODULE_AUTHOR("Roland Dreier"); 50MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 51MODULE_LICENSE("Dual BSD/GPL"); 52MODULE_VERSION(DRV_VERSION); 53 54#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 55 56int mthca_debug_level = 0; 57module_param_named(debug_level, mthca_debug_level, int, 0644); 58MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 59 60#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 61 62#ifdef CONFIG_PCI_MSI 63 64static int msi_x = 0; 65module_param(msi_x, int, 0444); 66MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 67 68static int msi = 0; 69module_param(msi, int, 0444); 70MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero (deprecated, use MSI-X instead)"); 71 72#else /* CONFIG_PCI_MSI */ 73 74#define msi_x (0) 75#define msi (0) 76 77#endif /* CONFIG_PCI_MSI */ 78 79static int tune_pci = 0; 80module_param(tune_pci, int, 0444); 81MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 82 83DEFINE_MUTEX(mthca_device_mutex); 84 85#define MTHCA_DEFAULT_NUM_QP (1 << 16) 86#define MTHCA_DEFAULT_RDB_PER_QP (1 << 2) 87#define MTHCA_DEFAULT_NUM_CQ (1 << 16) 88#define MTHCA_DEFAULT_NUM_MCG (1 << 13) 89#define MTHCA_DEFAULT_NUM_MPT (1 << 17) 90#define MTHCA_DEFAULT_NUM_MTT (1 << 20) 91#define MTHCA_DEFAULT_NUM_UDAV (1 << 15) 92#define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18) 93#define MTHCA_DEFAULT_NUM_UARC_SIZE (1 << 18) 94 95static struct mthca_profile hca_profile = { 96 .num_qp = MTHCA_DEFAULT_NUM_QP, 97 .rdb_per_qp = MTHCA_DEFAULT_RDB_PER_QP, 98 .num_cq = MTHCA_DEFAULT_NUM_CQ, 99 .num_mcg = MTHCA_DEFAULT_NUM_MCG, 100 .num_mpt = MTHCA_DEFAULT_NUM_MPT, 101 .num_mtt = MTHCA_DEFAULT_NUM_MTT, 102 .num_udav = MTHCA_DEFAULT_NUM_UDAV, /* Tavor only */ 103 .fmr_reserved_mtts = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */ 104 .uarc_size = MTHCA_DEFAULT_NUM_UARC_SIZE, /* Arbel only */ 105}; 106 107module_param_named(num_qp, hca_profile.num_qp, int, 0444); 108MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA"); 109 110module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444); 111MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP"); 112 113module_param_named(num_cq, hca_profile.num_cq, int, 0444); 114MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA"); 115 116module_param_named(num_mcg, hca_profile.num_mcg, int, 0444); 117MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA"); 118 119module_param_named(num_mpt, hca_profile.num_mpt, int, 0444); 120MODULE_PARM_DESC(num_mpt, 121 "maximum number of memory protection table entries per HCA"); 122 123module_param_named(num_mtt, hca_profile.num_mtt, int, 0444); 124MODULE_PARM_DESC(num_mtt, 125 "maximum number of memory translation table segments per HCA"); 126 127module_param_named(num_udav, hca_profile.num_udav, int, 0444); 128MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA"); 129 130module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444); 131MODULE_PARM_DESC(fmr_reserved_mtts, 132 "number of memory translation table segments reserved for FMR"); 133 134static const char mthca_version[] __devinitdata = 135 DRV_NAME ": Mellanox InfiniBand HCA driver v" 136 DRV_VERSION " (" DRV_RELDATE ")\n"; 137 138static int mthca_tune_pci(struct mthca_dev *mdev) 139{ 140 int cap; 141 u16 val; 142 143 if (!tune_pci) 144 return 0; 145 146 /* First try to max out Read Byte Count */ 147 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); 148 if (cap) { 149 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { 150 mthca_err(mdev, "Couldn't read PCI-X command register, " 151 "aborting.\n"); 152 return -ENODEV; 153 } 154 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); 155 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { 156 mthca_err(mdev, "Couldn't write PCI-X command register, " 157 "aborting.\n"); 158 return -ENODEV; 159 } 160 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 161 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 162 163 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); 164 if (cap) { 165 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { 166 mthca_err(mdev, "Couldn't read PCI Express device control " 167 "register, aborting.\n"); 168 return -ENODEV; 169 } 170 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); 171 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { 172 mthca_err(mdev, "Couldn't write PCI Express device control " 173 "register, aborting.\n"); 174 return -ENODEV; 175 } 176 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 177 mthca_info(mdev, "No PCI Express capability, " 178 "not setting Max Read Request Size.\n"); 179 180 return 0; 181} 182 183static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 184{ 185 int err; 186 u8 status; 187 188 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); 189 if (err) { 190 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 191 return err; 192 } 193 if (status) { 194 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " 195 "aborting.\n", status); 196 return -EINVAL; 197 } 198 if (dev_lim->min_page_sz > PAGE_SIZE) { 199 mthca_err(mdev, "HCA minimum page size of %d bigger than " 200 "kernel PAGE_SIZE of %ld, aborting.\n", 201 dev_lim->min_page_sz, PAGE_SIZE); 202 return -ENODEV; 203 } 204 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 205 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 206 "aborting.\n", 207 dev_lim->num_ports, MTHCA_MAX_PORTS); 208 return -ENODEV; 209 } 210 211 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { 212 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " 213 "PCI resource 2 size of 0x%llx, aborting.\n", 214 dev_lim->uar_size, 215 (unsigned long long)pci_resource_len(mdev->pdev, 2)); 216 return -ENODEV; 217 } 218 219 mdev->limits.num_ports = dev_lim->num_ports; 220 mdev->limits.vl_cap = dev_lim->max_vl; 221 mdev->limits.mtu_cap = dev_lim->max_mtu; 222 mdev->limits.gid_table_len = dev_lim->max_gids; 223 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 224 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 225 mdev->limits.max_sg = dev_lim->max_sg; 226 mdev->limits.max_wqes = dev_lim->max_qp_sz; 227 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 228 mdev->limits.reserved_qps = dev_lim->reserved_qps; 229 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 230 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 231 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 232 mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 233 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 234 /* 235 * Subtract 1 from the limit because we need to allocate a 236 * spare CQE so the HCA HW can tell the difference between an 237 * empty CQ and a full CQ. 238 */ 239 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 240 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 241 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 242 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 243 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 244 mdev->limits.reserved_uars = dev_lim->reserved_uars; 245 mdev->limits.reserved_pds = dev_lim->reserved_pds; 246 mdev->limits.port_width_cap = dev_lim->max_port_width; 247 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 248 mdev->limits.flags = dev_lim->flags; 249 /* 250 * For old FW that doesn't return static rate support, use a 251 * value of 0x3 (only static rate values of 0 or 1 are handled), 252 * except on Sinai, where even old FW can handle static rate 253 * values of 2 and 3. 254 */ 255 if (dev_lim->stat_rate_support) 256 mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 257 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 258 mdev->limits.stat_rate_support = 0xf; 259 else 260 mdev->limits.stat_rate_support = 0x3; 261 262 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 263 May be doable since hardware supports it for SRQ. 264 265 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 266 267 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 268 supported by driver. */ 269 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 270 IB_DEVICE_PORT_ACTIVE_EVENT | 271 IB_DEVICE_SYS_IMAGE_GUID | 272 IB_DEVICE_RC_RNR_NAK_GEN; 273 274 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 275 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 276 277 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 278 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 279 280 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 281 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 282 283 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 284 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 285 286 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 287 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 288 289 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 290 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 291 292 return 0; 293} 294 295static int mthca_init_tavor(struct mthca_dev *mdev) 296{ 297 u8 status; 298 int err; 299 struct mthca_dev_lim dev_lim; 300 struct mthca_profile profile; 301 struct mthca_init_hca_param init_hca; 302 303 err = mthca_SYS_EN(mdev, &status); 304 if (err) { 305 mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 306 return err; 307 } 308 if (status) { 309 mthca_err(mdev, "SYS_EN returned status 0x%02x, " 310 "aborting.\n", status); 311 return -EINVAL; 312 } 313 314 err = mthca_QUERY_FW(mdev, &status); 315 if (err) { 316 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 317 goto err_disable; 318 } 319 if (status) { 320 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 321 "aborting.\n", status); 322 err = -EINVAL; 323 goto err_disable; 324 } 325 err = mthca_QUERY_DDR(mdev, &status); 326 if (err) { 327 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 328 goto err_disable; 329 } 330 if (status) { 331 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 332 "aborting.\n", status); 333 err = -EINVAL; 334 goto err_disable; 335 } 336 337 err = mthca_dev_lim(mdev, &dev_lim); 338 if (err) { 339 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 340 goto err_disable; 341 } 342 343 profile = hca_profile; 344 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 345 profile.uarc_size = 0; 346 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 347 profile.num_srq = dev_lim.max_srqs; 348 349 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 350 if (err < 0) 351 goto err_disable; 352 353 err = mthca_INIT_HCA(mdev, &init_hca, &status); 354 if (err) { 355 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 356 goto err_disable; 357 } 358 if (status) { 359 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 360 "aborting.\n", status); 361 err = -EINVAL; 362 goto err_disable; 363 } 364 365 return 0; 366 367err_disable: 368 mthca_SYS_DIS(mdev, &status); 369 370 return err; 371} 372 373static int mthca_load_fw(struct mthca_dev *mdev) 374{ 375 u8 status; 376 int err; 377 378 /* FIXME: use HCA-attached memory for FW if present */ 379 380 mdev->fw.arbel.fw_icm = 381 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 382 GFP_HIGHUSER | __GFP_NOWARN, 0); 383 if (!mdev->fw.arbel.fw_icm) { 384 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 385 return -ENOMEM; 386 } 387 388 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 389 if (err) { 390 mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 391 goto err_free; 392 } 393 if (status) { 394 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 395 err = -EINVAL; 396 goto err_free; 397 } 398 err = mthca_RUN_FW(mdev, &status); 399 if (err) { 400 mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 401 goto err_unmap_fa; 402 } 403 if (status) { 404 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 405 err = -EINVAL; 406 goto err_unmap_fa; 407 } 408 409 return 0; 410 411err_unmap_fa: 412 mthca_UNMAP_FA(mdev, &status); 413 414err_free: 415 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 416 return err; 417} 418 419static int mthca_init_icm(struct mthca_dev *mdev, 420 struct mthca_dev_lim *dev_lim, 421 struct mthca_init_hca_param *init_hca, 422 u64 icm_size) 423{ 424 u64 aux_pages; 425 u8 status; 426 int err; 427 428 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 429 if (err) { 430 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 431 return err; 432 } 433 if (status) { 434 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 435 "aborting.\n", status); 436 return -EINVAL; 437 } 438 439 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 440 (unsigned long long) icm_size >> 10, 441 (unsigned long long) aux_pages << 2); 442 443 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 444 GFP_HIGHUSER | __GFP_NOWARN, 0); 445 if (!mdev->fw.arbel.aux_icm) { 446 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 447 return -ENOMEM; 448 } 449 450 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 451 if (err) { 452 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 453 goto err_free_aux; 454 } 455 if (status) { 456 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 457 err = -EINVAL; 458 goto err_free_aux; 459 } 460 461 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 462 if (err) { 463 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 464 goto err_unmap_aux; 465 } 466 467 /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */ 468 mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE, 469 dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE; 470 471 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 472 MTHCA_MTT_SEG_SIZE, 473 mdev->limits.num_mtt_segs, 474 mdev->limits.reserved_mtts, 475 1, 0); 476 if (!mdev->mr_table.mtt_table) { 477 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 478 err = -ENOMEM; 479 goto err_unmap_eq; 480 } 481 482 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 483 dev_lim->mpt_entry_sz, 484 mdev->limits.num_mpts, 485 mdev->limits.reserved_mrws, 486 1, 1); 487 if (!mdev->mr_table.mpt_table) { 488 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 489 err = -ENOMEM; 490 goto err_unmap_mtt; 491 } 492 493 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 494 dev_lim->qpc_entry_sz, 495 mdev->limits.num_qps, 496 mdev->limits.reserved_qps, 497 0, 0); 498 if (!mdev->qp_table.qp_table) { 499 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 500 err = -ENOMEM; 501 goto err_unmap_mpt; 502 } 503 504 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 505 dev_lim->eqpc_entry_sz, 506 mdev->limits.num_qps, 507 mdev->limits.reserved_qps, 508 0, 0); 509 if (!mdev->qp_table.eqp_table) { 510 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 511 err = -ENOMEM; 512 goto err_unmap_qp; 513 } 514 515 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 516 MTHCA_RDB_ENTRY_SIZE, 517 mdev->limits.num_qps << 518 mdev->qp_table.rdb_shift, 0, 519 0, 0); 520 if (!mdev->qp_table.rdb_table) { 521 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 522 err = -ENOMEM; 523 goto err_unmap_eqp; 524 } 525 526 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 527 dev_lim->cqc_entry_sz, 528 mdev->limits.num_cqs, 529 mdev->limits.reserved_cqs, 530 0, 0); 531 if (!mdev->cq_table.table) { 532 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 533 err = -ENOMEM; 534 goto err_unmap_rdb; 535 } 536 537 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 538 mdev->srq_table.table = 539 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 540 dev_lim->srq_entry_sz, 541 mdev->limits.num_srqs, 542 mdev->limits.reserved_srqs, 543 0, 0); 544 if (!mdev->srq_table.table) { 545 mthca_err(mdev, "Failed to map SRQ context memory, " 546 "aborting.\n"); 547 err = -ENOMEM; 548 goto err_unmap_cq; 549 } 550 } 551 552 /* 553 * It's not strictly required, but for simplicity just map the 554 * whole multicast group table now. The table isn't very big 555 * and it's a lot easier than trying to track ref counts. 556 */ 557 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 558 MTHCA_MGM_ENTRY_SIZE, 559 mdev->limits.num_mgms + 560 mdev->limits.num_amgms, 561 mdev->limits.num_mgms + 562 mdev->limits.num_amgms, 563 0, 0); 564 if (!mdev->mcg_table.table) { 565 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 566 err = -ENOMEM; 567 goto err_unmap_srq; 568 } 569 570 return 0; 571 572err_unmap_srq: 573 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 574 mthca_free_icm_table(mdev, mdev->srq_table.table); 575 576err_unmap_cq: 577 mthca_free_icm_table(mdev, mdev->cq_table.table); 578 579err_unmap_rdb: 580 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 581 582err_unmap_eqp: 583 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 584 585err_unmap_qp: 586 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 587 588err_unmap_mpt: 589 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 590 591err_unmap_mtt: 592 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 593 594err_unmap_eq: 595 mthca_unmap_eq_icm(mdev); 596 597err_unmap_aux: 598 mthca_UNMAP_ICM_AUX(mdev, &status); 599 600err_free_aux: 601 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 602 603 return err; 604} 605 606static void mthca_free_icms(struct mthca_dev *mdev) 607{ 608 u8 status; 609 610 mthca_free_icm_table(mdev, mdev->mcg_table.table); 611 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 612 mthca_free_icm_table(mdev, mdev->srq_table.table); 613 mthca_free_icm_table(mdev, mdev->cq_table.table); 614 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 615 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 616 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 617 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 618 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 619 mthca_unmap_eq_icm(mdev); 620 621 mthca_UNMAP_ICM_AUX(mdev, &status); 622 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0); 623} 624 625static int mthca_init_arbel(struct mthca_dev *mdev) 626{ 627 struct mthca_dev_lim dev_lim; 628 struct mthca_profile profile; 629 struct mthca_init_hca_param init_hca; 630 u64 icm_size; 631 u8 status; 632 int err; 633 634 err = mthca_QUERY_FW(mdev, &status); 635 if (err) { 636 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 637 return err; 638 } 639 if (status) { 640 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 641 "aborting.\n", status); 642 return -EINVAL; 643 } 644 645 err = mthca_ENABLE_LAM(mdev, &status); 646 if (err) { 647 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 648 return err; 649 } 650 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 651 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 652 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 653 } else if (status) { 654 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 655 "aborting.\n", status); 656 return -EINVAL; 657 } 658 659 err = mthca_load_fw(mdev); 660 if (err) { 661 mthca_err(mdev, "Failed to start FW, aborting.\n"); 662 goto err_disable; 663 } 664 665 err = mthca_dev_lim(mdev, &dev_lim); 666 if (err) { 667 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 668 goto err_stop_fw; 669 } 670 671 profile = hca_profile; 672 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 673 profile.num_udav = 0; 674 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 675 profile.num_srq = dev_lim.max_srqs; 676 677 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 678 if ((int) icm_size < 0) { 679 err = icm_size; 680 goto err_stop_fw; 681 } 682 683 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 684 if (err) 685 goto err_stop_fw; 686 687 err = mthca_INIT_HCA(mdev, &init_hca, &status); 688 if (err) { 689 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 690 goto err_free_icm; 691 } 692 if (status) { 693 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 694 "aborting.\n", status); 695 err = -EINVAL; 696 goto err_free_icm; 697 } 698 699 return 0; 700 701err_free_icm: 702 mthca_free_icms(mdev); 703 704err_stop_fw: 705 mthca_UNMAP_FA(mdev, &status); 706 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 707 708err_disable: 709 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 710 mthca_DISABLE_LAM(mdev, &status); 711 712 return err; 713} 714 715static void mthca_close_hca(struct mthca_dev *mdev) 716{ 717 u8 status; 718 719 mthca_CLOSE_HCA(mdev, 0, &status); 720 721 if (mthca_is_memfree(mdev)) { 722 mthca_free_icms(mdev); 723 724 mthca_UNMAP_FA(mdev, &status); 725 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0); 726 727 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 728 mthca_DISABLE_LAM(mdev, &status); 729 } else 730 mthca_SYS_DIS(mdev, &status); 731} 732 733static int mthca_init_hca(struct mthca_dev *mdev) 734{ 735 u8 status; 736 int err; 737 struct mthca_adapter adapter; 738 739 if (mthca_is_memfree(mdev)) 740 err = mthca_init_arbel(mdev); 741 else 742 err = mthca_init_tavor(mdev); 743 744 if (err) 745 return err; 746 747 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 748 if (err) { 749 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 750 goto err_close; 751 } 752 if (status) { 753 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 754 "aborting.\n", status); 755 err = -EINVAL; 756 goto err_close; 757 } 758 759 mdev->eq_table.inta_pin = adapter.inta_pin; 760 mdev->rev_id = adapter.revision_id; 761 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 762 763 return 0; 764 765err_close: 766 mthca_close_hca(mdev); 767 return err; 768} 769 770static int mthca_setup_hca(struct mthca_dev *dev) 771{ 772 int err; 773 u8 status; 774 775 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 776 777 err = mthca_init_uar_table(dev); 778 if (err) { 779 mthca_err(dev, "Failed to initialize " 780 "user access region table, aborting.\n"); 781 return err; 782 } 783 784 err = mthca_uar_alloc(dev, &dev->driver_uar); 785 if (err) { 786 mthca_err(dev, "Failed to allocate driver access region, " 787 "aborting.\n"); 788 goto err_uar_table_free; 789 } 790 791 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 792 if (!dev->kar) { 793 mthca_err(dev, "Couldn't map kernel access region, " 794 "aborting.\n"); 795 err = -ENOMEM; 796 goto err_uar_free; 797 } 798 799 err = mthca_init_pd_table(dev); 800 if (err) { 801 mthca_err(dev, "Failed to initialize " 802 "protection domain table, aborting.\n"); 803 goto err_kar_unmap; 804 } 805 806 err = mthca_init_mr_table(dev); 807 if (err) { 808 mthca_err(dev, "Failed to initialize " 809 "memory region table, aborting.\n"); 810 goto err_pd_table_free; 811 } 812 813 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 814 if (err) { 815 mthca_err(dev, "Failed to create driver PD, " 816 "aborting.\n"); 817 goto err_mr_table_free; 818 } 819 820 err = mthca_init_eq_table(dev); 821 if (err) { 822 mthca_err(dev, "Failed to initialize " 823 "event queue table, aborting.\n"); 824 goto err_pd_free; 825 } 826 827 err = mthca_cmd_use_events(dev); 828 if (err) { 829 mthca_err(dev, "Failed to switch to event-driven " 830 "firmware commands, aborting.\n"); 831 goto err_eq_table_free; 832 } 833 834 err = mthca_NOP(dev, &status); 835 if (err || status) { 836 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", 837 dev->mthca_flags & MTHCA_FLAG_MSI_X ? 838 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : 839 dev->pdev->irq); 840 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) 841 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); 842 else 843 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 844 845 goto err_cmd_poll; 846 } 847 848 mthca_dbg(dev, "NOP command IRQ test passed\n"); 849 850 err = mthca_init_cq_table(dev); 851 if (err) { 852 mthca_err(dev, "Failed to initialize " 853 "completion queue table, aborting.\n"); 854 goto err_cmd_poll; 855 } 856 857 err = mthca_init_srq_table(dev); 858 if (err) { 859 mthca_err(dev, "Failed to initialize " 860 "shared receive queue table, aborting.\n"); 861 goto err_cq_table_free; 862 } 863 864 err = mthca_init_qp_table(dev); 865 if (err) { 866 mthca_err(dev, "Failed to initialize " 867 "queue pair table, aborting.\n"); 868 goto err_srq_table_free; 869 } 870 871 err = mthca_init_av_table(dev); 872 if (err) { 873 mthca_err(dev, "Failed to initialize " 874 "address vector table, aborting.\n"); 875 goto err_qp_table_free; 876 } 877 878 err = mthca_init_mcg_table(dev); 879 if (err) { 880 mthca_err(dev, "Failed to initialize " 881 "multicast group table, aborting.\n"); 882 goto err_av_table_free; 883 } 884 885 return 0; 886 887err_av_table_free: 888 mthca_cleanup_av_table(dev); 889 890err_qp_table_free: 891 mthca_cleanup_qp_table(dev); 892 893err_srq_table_free: 894 mthca_cleanup_srq_table(dev); 895 896err_cq_table_free: 897 mthca_cleanup_cq_table(dev); 898 899err_cmd_poll: 900 mthca_cmd_use_polling(dev); 901 902err_eq_table_free: 903 mthca_cleanup_eq_table(dev); 904 905err_pd_free: 906 mthca_pd_free(dev, &dev->driver_pd); 907 908err_mr_table_free: 909 mthca_cleanup_mr_table(dev); 910 911err_pd_table_free: 912 mthca_cleanup_pd_table(dev); 913 914err_kar_unmap: 915 iounmap(dev->kar); 916 917err_uar_free: 918 mthca_uar_free(dev, &dev->driver_uar); 919 920err_uar_table_free: 921 mthca_cleanup_uar_table(dev); 922 return err; 923} 924 925static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden) 926{ 927 int err; 928 929 /* 930 * We can't just use pci_request_regions() because the MSI-X 931 * table is right in the middle of the first BAR. If we did 932 * pci_request_region and grab all of the first BAR, then 933 * setting up MSI-X would fail, since the PCI core wants to do 934 * request_mem_region on the MSI-X vector table. 935 * 936 * So just request what we need right now, and request any 937 * other regions we need when setting up EQs. 938 */ 939 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 940 MTHCA_HCR_SIZE, DRV_NAME)) 941 return -EBUSY; 942 943 err = pci_request_region(pdev, 2, DRV_NAME); 944 if (err) 945 goto err_bar2_failed; 946 947 if (!ddr_hidden) { 948 err = pci_request_region(pdev, 4, DRV_NAME); 949 if (err) 950 goto err_bar4_failed; 951 } 952 953 return 0; 954 955err_bar4_failed: 956 pci_release_region(pdev, 2); 957 958err_bar2_failed: 959 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 960 MTHCA_HCR_SIZE); 961 962 return err; 963} 964 965static void mthca_release_regions(struct pci_dev *pdev, 966 int ddr_hidden) 967{ 968 if (!ddr_hidden) 969 pci_release_region(pdev, 4); 970 971 pci_release_region(pdev, 2); 972 973 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 974 MTHCA_HCR_SIZE); 975} 976 977static int mthca_enable_msi_x(struct mthca_dev *mdev) 978{ 979 struct msix_entry entries[3]; 980 int err; 981 982 entries[0].entry = 0; 983 entries[1].entry = 1; 984 entries[2].entry = 2; 985 986 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 987 if (err) { 988 if (err > 0) 989 mthca_info(mdev, "Only %d MSI-X vectors available, " 990 "not using MSI-X\n", err); 991 return err; 992 } 993 994 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 995 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 996 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 997 998 return 0; 999} 1000 1001/* Types of supported HCA */ 1002enum { 1003 TAVOR, /* MT23108 */ 1004 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 1005 ARBEL_NATIVE, /* MT25208 with extended features */ 1006 SINAI /* MT25204 */ 1007}; 1008 1009#define MTHCA_FW_VER(major, minor, subminor) \ 1010 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 1011 1012static struct { 1013 u64 latest_fw; 1014 u32 flags; 1015} mthca_hca_table[] = { 1016 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 5, 0), 1017 .flags = 0 }, 1018 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200), 1019 .flags = MTHCA_FLAG_PCIE }, 1020 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 2, 0), 1021 .flags = MTHCA_FLAG_MEMFREE | 1022 MTHCA_FLAG_PCIE }, 1023 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 2, 0), 1024 .flags = MTHCA_FLAG_MEMFREE | 1025 MTHCA_FLAG_PCIE | 1026 MTHCA_FLAG_SINAI_OPT } 1027}; 1028 1029static int __mthca_init_one(struct pci_dev *pdev, int hca_type) 1030{ 1031 int ddr_hidden = 0; 1032 int err; 1033 struct mthca_dev *mdev; 1034 1035 printk(KERN_INFO PFX "Initializing %s\n", 1036 pci_name(pdev)); 1037 1038 err = pci_enable_device(pdev); 1039 if (err) { 1040 dev_err(&pdev->dev, "Cannot enable PCI device, " 1041 "aborting.\n"); 1042 return err; 1043 } 1044 1045 /* 1046 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 1047 * be present) 1048 */ 1049 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 1050 pci_resource_len(pdev, 0) != 1 << 20) { 1051 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 1052 err = -ENODEV; 1053 goto err_disable_pdev; 1054 } 1055 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 1056 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 1057 err = -ENODEV; 1058 goto err_disable_pdev; 1059 } 1060 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 1061 ddr_hidden = 1; 1062 1063 err = mthca_request_regions(pdev, ddr_hidden); 1064 if (err) { 1065 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 1066 "aborting.\n"); 1067 goto err_disable_pdev; 1068 } 1069 1070 pci_set_master(pdev); 1071 1072 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); 1073 if (err) { 1074 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 1075 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 1076 if (err) { 1077 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 1078 goto err_free_res; 1079 } 1080 } 1081 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 1082 if (err) { 1083 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 1084 "consistent PCI DMA mask.\n"); 1085 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 1086 if (err) { 1087 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 1088 "aborting.\n"); 1089 goto err_free_res; 1090 } 1091 } 1092 1093 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 1094 if (!mdev) { 1095 dev_err(&pdev->dev, "Device struct alloc failed, " 1096 "aborting.\n"); 1097 err = -ENOMEM; 1098 goto err_free_res; 1099 } 1100 1101 mdev->pdev = pdev; 1102 1103 mdev->mthca_flags = mthca_hca_table[hca_type].flags; 1104 if (ddr_hidden) 1105 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 1106 1107 /* 1108 * Now reset the HCA before we touch the PCI capabilities or 1109 * attempt a firmware command, since a boot ROM may have left 1110 * the HCA in an undefined state. 1111 */ 1112 err = mthca_reset(mdev); 1113 if (err) { 1114 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 1115 goto err_free_dev; 1116 } 1117 1118 if (msi_x && !mthca_enable_msi_x(mdev)) 1119 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1120 else if (msi) { 1121 static int warned; 1122 1123 if (!warned) { 1124 printk(KERN_WARNING PFX "WARNING: MSI support will be " 1125 "removed from the ib_mthca driver in January 2008.\n"); 1126 printk(KERN_WARNING " If you are using MSI and cannot " 1127 "switch to MSI-X, please tell " 1128 "<general@lists.openfabrics.org>.\n"); 1129 ++warned; 1130 } 1131 1132 if (!pci_enable_msi(pdev)) 1133 mdev->mthca_flags |= MTHCA_FLAG_MSI; 1134 } 1135 1136 if (mthca_cmd_init(mdev)) { 1137 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1138 goto err_free_dev; 1139 } 1140 1141 err = mthca_tune_pci(mdev); 1142 if (err) 1143 goto err_cmd; 1144 1145 err = mthca_init_hca(mdev); 1146 if (err) 1147 goto err_cmd; 1148 1149 if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { 1150 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n", 1151 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1152 (int) (mdev->fw_ver & 0xffff), 1153 (int) (mthca_hca_table[hca_type].latest_fw >> 32), 1154 (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff, 1155 (int) (mthca_hca_table[hca_type].latest_fw & 0xffff)); 1156 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1157 } 1158 1159 err = mthca_setup_hca(mdev); 1160 if (err) 1161 goto err_close; 1162 1163 err = mthca_register_device(mdev); 1164 if (err) 1165 goto err_cleanup; 1166 1167 err = mthca_create_agents(mdev); 1168 if (err) 1169 goto err_unregister; 1170 1171 pci_set_drvdata(pdev, mdev); 1172 mdev->hca_type = hca_type; 1173 1174 return 0; 1175 1176err_unregister: 1177 mthca_unregister_device(mdev); 1178 1179err_cleanup: 1180 mthca_cleanup_mcg_table(mdev); 1181 mthca_cleanup_av_table(mdev); 1182 mthca_cleanup_qp_table(mdev); 1183 mthca_cleanup_srq_table(mdev); 1184 mthca_cleanup_cq_table(mdev); 1185 mthca_cmd_use_polling(mdev); 1186 mthca_cleanup_eq_table(mdev); 1187 1188 mthca_pd_free(mdev, &mdev->driver_pd); 1189 1190 mthca_cleanup_mr_table(mdev); 1191 mthca_cleanup_pd_table(mdev); 1192 mthca_cleanup_uar_table(mdev); 1193 1194err_close: 1195 mthca_close_hca(mdev); 1196 1197err_cmd: 1198 mthca_cmd_cleanup(mdev); 1199 1200err_free_dev: 1201 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1202 pci_disable_msix(pdev); 1203 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1204 pci_disable_msi(pdev); 1205 1206 ib_dealloc_device(&mdev->ib_dev); 1207 1208err_free_res: 1209 mthca_release_regions(pdev, ddr_hidden); 1210 1211err_disable_pdev: 1212 pci_disable_device(pdev); 1213 pci_set_drvdata(pdev, NULL); 1214 return err; 1215} 1216 1217static void __mthca_remove_one(struct pci_dev *pdev) 1218{ 1219 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1220 u8 status; 1221 int p; 1222 1223 if (mdev) { 1224 mthca_free_agents(mdev); 1225 mthca_unregister_device(mdev); 1226 1227 for (p = 1; p <= mdev->limits.num_ports; ++p) 1228 mthca_CLOSE_IB(mdev, p, &status); 1229 1230 mthca_cleanup_mcg_table(mdev); 1231 mthca_cleanup_av_table(mdev); 1232 mthca_cleanup_qp_table(mdev); 1233 mthca_cleanup_srq_table(mdev); 1234 mthca_cleanup_cq_table(mdev); 1235 mthca_cmd_use_polling(mdev); 1236 mthca_cleanup_eq_table(mdev); 1237 1238 mthca_pd_free(mdev, &mdev->driver_pd); 1239 1240 mthca_cleanup_mr_table(mdev); 1241 mthca_cleanup_pd_table(mdev); 1242 1243 iounmap(mdev->kar); 1244 mthca_uar_free(mdev, &mdev->driver_uar); 1245 mthca_cleanup_uar_table(mdev); 1246 mthca_close_hca(mdev); 1247 mthca_cmd_cleanup(mdev); 1248 1249 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1250 pci_disable_msix(pdev); 1251 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1252 pci_disable_msi(pdev); 1253 1254 ib_dealloc_device(&mdev->ib_dev); 1255 mthca_release_regions(pdev, mdev->mthca_flags & 1256 MTHCA_FLAG_DDR_HIDDEN); 1257 pci_disable_device(pdev); 1258 pci_set_drvdata(pdev, NULL); 1259 } 1260} 1261 1262int __mthca_restart_one(struct pci_dev *pdev) 1263{ 1264 struct mthca_dev *mdev; 1265 int hca_type; 1266 1267 mdev = pci_get_drvdata(pdev); 1268 if (!mdev) 1269 return -ENODEV; 1270 hca_type = mdev->hca_type; 1271 __mthca_remove_one(pdev); 1272 return __mthca_init_one(pdev, hca_type); 1273} 1274 1275static int __devinit mthca_init_one(struct pci_dev *pdev, 1276 const struct pci_device_id *id) 1277{ 1278 static int mthca_version_printed = 0; 1279 int ret; 1280 1281 mutex_lock(&mthca_device_mutex); 1282 1283 if (!mthca_version_printed) { 1284 printk(KERN_INFO "%s", mthca_version); 1285 ++mthca_version_printed; 1286 } 1287 1288 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 1289 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 1290 pci_name(pdev), id->driver_data); 1291 mutex_unlock(&mthca_device_mutex); 1292 return -ENODEV; 1293 } 1294 1295 ret = __mthca_init_one(pdev, id->driver_data); 1296 1297 mutex_unlock(&mthca_device_mutex); 1298 1299 return ret; 1300} 1301 1302static void __devexit mthca_remove_one(struct pci_dev *pdev) 1303{ 1304 mutex_lock(&mthca_device_mutex); 1305 __mthca_remove_one(pdev); 1306 mutex_unlock(&mthca_device_mutex); 1307} 1308 1309static struct pci_device_id mthca_pci_table[] = { 1310 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1311 .driver_data = TAVOR }, 1312 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1313 .driver_data = TAVOR }, 1314 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1315 .driver_data = ARBEL_COMPAT }, 1316 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1317 .driver_data = ARBEL_COMPAT }, 1318 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1319 .driver_data = ARBEL_NATIVE }, 1320 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1321 .driver_data = ARBEL_NATIVE }, 1322 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1323 .driver_data = SINAI }, 1324 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1325 .driver_data = SINAI }, 1326 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1327 .driver_data = SINAI }, 1328 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1329 .driver_data = SINAI }, 1330 { 0, } 1331}; 1332 1333MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1334 1335static struct pci_driver mthca_driver = { 1336 .name = DRV_NAME, 1337 .id_table = mthca_pci_table, 1338 .probe = mthca_init_one, 1339 .remove = __devexit_p(mthca_remove_one) 1340}; 1341 1342static void __init __mthca_check_profile_val(const char *name, int *pval, 1343 int pval_default) 1344{ 1345 /* value must be positive and power of 2 */ 1346 int old_pval = *pval; 1347 1348 if (old_pval <= 0) 1349 *pval = pval_default; 1350 else 1351 *pval = roundup_pow_of_two(old_pval); 1352 1353 if (old_pval != *pval) { 1354 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n", 1355 old_pval, name); 1356 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval); 1357 } 1358} 1359 1360#define mthca_check_profile_val(name, default) \ 1361 __mthca_check_profile_val(#name, &hca_profile.name, default) 1362 1363static void __init mthca_validate_profile(void) 1364{ 1365 mthca_check_profile_val(num_qp, MTHCA_DEFAULT_NUM_QP); 1366 mthca_check_profile_val(rdb_per_qp, MTHCA_DEFAULT_RDB_PER_QP); 1367 mthca_check_profile_val(num_cq, MTHCA_DEFAULT_NUM_CQ); 1368 mthca_check_profile_val(num_mcg, MTHCA_DEFAULT_NUM_MCG); 1369 mthca_check_profile_val(num_mpt, MTHCA_DEFAULT_NUM_MPT); 1370 mthca_check_profile_val(num_mtt, MTHCA_DEFAULT_NUM_MTT); 1371 mthca_check_profile_val(num_udav, MTHCA_DEFAULT_NUM_UDAV); 1372 mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS); 1373 1374 if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) { 1375 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n", 1376 hca_profile.fmr_reserved_mtts); 1377 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n", 1378 hca_profile.num_mtt); 1379 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2; 1380 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n", 1381 hca_profile.fmr_reserved_mtts); 1382 } 1383} 1384 1385static int __init mthca_init(void) 1386{ 1387 int ret; 1388 1389 mthca_validate_profile(); 1390 1391 ret = mthca_catas_init(); 1392 if (ret) 1393 return ret; 1394 1395 ret = pci_register_driver(&mthca_driver); 1396 if (ret < 0) { 1397 mthca_catas_cleanup(); 1398 return ret; 1399 } 1400 1401 return 0; 1402} 1403 1404static void __exit mthca_cleanup(void) 1405{ 1406 pci_unregister_driver(&mthca_driver); 1407 mthca_catas_cleanup(); 1408} 1409 1410module_init(mthca_init); 1411module_exit(mthca_cleanup); 1412