mthca_main.c revision 59fef3b1e96217c6e736372ff8cc95cbcca1b6aa
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/config.h> 38#include <linux/module.h> 39#include <linux/init.h> 40#include <linux/errno.h> 41#include <linux/pci.h> 42#include <linux/interrupt.h> 43 44#include "mthca_dev.h" 45#include "mthca_config_reg.h" 46#include "mthca_cmd.h" 47#include "mthca_profile.h" 48#include "mthca_memfree.h" 49 50MODULE_AUTHOR("Roland Dreier"); 51MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 52MODULE_LICENSE("Dual BSD/GPL"); 53MODULE_VERSION(DRV_VERSION); 54 55#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 56 57int mthca_debug_level = 0; 58module_param_named(debug_level, mthca_debug_level, int, 0644); 59MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 60 61#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 62 63#ifdef CONFIG_PCI_MSI 64 65static int msi_x = 0; 66module_param(msi_x, int, 0444); 67MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 68 69static int msi = 0; 70module_param(msi, int, 0444); 71MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); 72 73#else /* CONFIG_PCI_MSI */ 74 75#define msi_x (0) 76#define msi (0) 77 78#endif /* CONFIG_PCI_MSI */ 79 80static int tune_pci = 0; 81module_param(tune_pci, int, 0444); 82MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 83 84static const char mthca_version[] __devinitdata = 85 DRV_NAME ": Mellanox InfiniBand HCA driver v" 86 DRV_VERSION " (" DRV_RELDATE ")\n"; 87 88static struct mthca_profile default_profile = { 89 .num_qp = 1 << 16, 90 .rdb_per_qp = 4, 91 .num_cq = 1 << 16, 92 .num_mcg = 1 << 13, 93 .num_mpt = 1 << 17, 94 .num_mtt = 1 << 20, 95 .num_udav = 1 << 15, /* Tavor only */ 96 .fmr_reserved_mtts = 1 << 18, /* Tavor only */ 97 .uarc_size = 1 << 18, /* Arbel only */ 98}; 99 100static int __devinit mthca_tune_pci(struct mthca_dev *mdev) 101{ 102 int cap; 103 u16 val; 104 105 if (!tune_pci) 106 return 0; 107 108 /* First try to max out Read Byte Count */ 109 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); 110 if (cap) { 111 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { 112 mthca_err(mdev, "Couldn't read PCI-X command register, " 113 "aborting.\n"); 114 return -ENODEV; 115 } 116 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); 117 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { 118 mthca_err(mdev, "Couldn't write PCI-X command register, " 119 "aborting.\n"); 120 return -ENODEV; 121 } 122 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 123 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 124 125 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); 126 if (cap) { 127 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { 128 mthca_err(mdev, "Couldn't read PCI Express device control " 129 "register, aborting.\n"); 130 return -ENODEV; 131 } 132 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); 133 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { 134 mthca_err(mdev, "Couldn't write PCI Express device control " 135 "register, aborting.\n"); 136 return -ENODEV; 137 } 138 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 139 mthca_info(mdev, "No PCI Express capability, " 140 "not setting Max Read Request Size.\n"); 141 142 return 0; 143} 144 145static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 146{ 147 int err; 148 u8 status; 149 150 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); 151 if (err) { 152 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 153 return err; 154 } 155 if (status) { 156 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " 157 "aborting.\n", status); 158 return -EINVAL; 159 } 160 if (dev_lim->min_page_sz > PAGE_SIZE) { 161 mthca_err(mdev, "HCA minimum page size of %d bigger than " 162 "kernel PAGE_SIZE of %ld, aborting.\n", 163 dev_lim->min_page_sz, PAGE_SIZE); 164 return -ENODEV; 165 } 166 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 167 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 168 "aborting.\n", 169 dev_lim->num_ports, MTHCA_MAX_PORTS); 170 return -ENODEV; 171 } 172 173 if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) { 174 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than " 175 "PCI resource 2 size of 0x%lx, aborting.\n", 176 dev_lim->uar_size, pci_resource_len(mdev->pdev, 2)); 177 return -ENODEV; 178 } 179 180 mdev->limits.num_ports = dev_lim->num_ports; 181 mdev->limits.vl_cap = dev_lim->max_vl; 182 mdev->limits.mtu_cap = dev_lim->max_mtu; 183 mdev->limits.gid_table_len = dev_lim->max_gids; 184 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 185 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 186 mdev->limits.max_sg = dev_lim->max_sg; 187 mdev->limits.max_wqes = dev_lim->max_qp_sz; 188 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 189 mdev->limits.reserved_qps = dev_lim->reserved_qps; 190 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 191 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 192 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 193 mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 194 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 195 /* 196 * Subtract 1 from the limit because we need to allocate a 197 * spare CQE so the HCA HW can tell the difference between an 198 * empty CQ and a full CQ. 199 */ 200 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 201 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 202 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 203 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 204 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 205 mdev->limits.reserved_uars = dev_lim->reserved_uars; 206 mdev->limits.reserved_pds = dev_lim->reserved_pds; 207 mdev->limits.port_width_cap = dev_lim->max_port_width; 208 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 209 mdev->limits.flags = dev_lim->flags; 210 /* 211 * For old FW that doesn't return static rate support, use a 212 * value of 0x3 (only static rate values of 0 or 1 are handled), 213 * except on Sinai, where even old FW can handle static rate 214 * values of 2 and 3. 215 */ 216 if (dev_lim->stat_rate_support) 217 mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 218 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 219 mdev->limits.stat_rate_support = 0xf; 220 else 221 mdev->limits.stat_rate_support = 0x3; 222 223 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 224 May be doable since hardware supports it for SRQ. 225 226 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 227 228 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 229 supported by driver. */ 230 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 231 IB_DEVICE_PORT_ACTIVE_EVENT | 232 IB_DEVICE_SYS_IMAGE_GUID | 233 IB_DEVICE_RC_RNR_NAK_GEN; 234 235 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 236 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 237 238 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 239 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 240 241 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 242 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 243 244 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 245 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 246 247 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 248 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 249 250 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 251 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 252 253 return 0; 254} 255 256static int __devinit mthca_init_tavor(struct mthca_dev *mdev) 257{ 258 u8 status; 259 int err; 260 struct mthca_dev_lim dev_lim; 261 struct mthca_profile profile; 262 struct mthca_init_hca_param init_hca; 263 264 err = mthca_SYS_EN(mdev, &status); 265 if (err) { 266 mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 267 return err; 268 } 269 if (status) { 270 mthca_err(mdev, "SYS_EN returned status 0x%02x, " 271 "aborting.\n", status); 272 return -EINVAL; 273 } 274 275 err = mthca_QUERY_FW(mdev, &status); 276 if (err) { 277 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 278 goto err_disable; 279 } 280 if (status) { 281 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 282 "aborting.\n", status); 283 err = -EINVAL; 284 goto err_disable; 285 } 286 err = mthca_QUERY_DDR(mdev, &status); 287 if (err) { 288 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 289 goto err_disable; 290 } 291 if (status) { 292 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 293 "aborting.\n", status); 294 err = -EINVAL; 295 goto err_disable; 296 } 297 298 err = mthca_dev_lim(mdev, &dev_lim); 299 if (err) { 300 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 301 goto err_disable; 302 } 303 304 profile = default_profile; 305 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 306 profile.uarc_size = 0; 307 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 308 profile.num_srq = dev_lim.max_srqs; 309 310 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 311 if (err < 0) 312 goto err_disable; 313 314 err = mthca_INIT_HCA(mdev, &init_hca, &status); 315 if (err) { 316 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 317 goto err_disable; 318 } 319 if (status) { 320 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 321 "aborting.\n", status); 322 err = -EINVAL; 323 goto err_disable; 324 } 325 326 return 0; 327 328err_disable: 329 mthca_SYS_DIS(mdev, &status); 330 331 return err; 332} 333 334static int __devinit mthca_load_fw(struct mthca_dev *mdev) 335{ 336 u8 status; 337 int err; 338 339 /* FIXME: use HCA-attached memory for FW if present */ 340 341 mdev->fw.arbel.fw_icm = 342 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 343 GFP_HIGHUSER | __GFP_NOWARN); 344 if (!mdev->fw.arbel.fw_icm) { 345 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 346 return -ENOMEM; 347 } 348 349 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 350 if (err) { 351 mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 352 goto err_free; 353 } 354 if (status) { 355 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 356 err = -EINVAL; 357 goto err_free; 358 } 359 err = mthca_RUN_FW(mdev, &status); 360 if (err) { 361 mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 362 goto err_unmap_fa; 363 } 364 if (status) { 365 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 366 err = -EINVAL; 367 goto err_unmap_fa; 368 } 369 370 return 0; 371 372err_unmap_fa: 373 mthca_UNMAP_FA(mdev, &status); 374 375err_free: 376 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 377 return err; 378} 379 380static int __devinit 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; 386 u8 status; 387 int err; 388 389 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 390 if (err) { 391 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 392 return err; 393 } 394 if (status) { 395 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 396 "aborting.\n", status); 397 return -EINVAL; 398 } 399 400 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 401 (unsigned long long) icm_size >> 10, 402 (unsigned long long) aux_pages << 2); 403 404 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 405 GFP_HIGHUSER | __GFP_NOWARN); 406 if (!mdev->fw.arbel.aux_icm) { 407 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 408 return -ENOMEM; 409 } 410 411 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 412 if (err) { 413 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 414 goto err_free_aux; 415 } 416 if (status) { 417 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 418 err = -EINVAL; 419 goto err_free_aux; 420 } 421 422 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 423 if (err) { 424 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 425 goto err_unmap_aux; 426 } 427 428 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 429 MTHCA_MTT_SEG_SIZE, 430 mdev->limits.num_mtt_segs, 431 mdev->limits.reserved_mtts, 1); 432 if (!mdev->mr_table.mtt_table) { 433 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 434 err = -ENOMEM; 435 goto err_unmap_eq; 436 } 437 438 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 439 dev_lim->mpt_entry_sz, 440 mdev->limits.num_mpts, 441 mdev->limits.reserved_mrws, 1); 442 if (!mdev->mr_table.mpt_table) { 443 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 444 err = -ENOMEM; 445 goto err_unmap_mtt; 446 } 447 448 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 449 dev_lim->qpc_entry_sz, 450 mdev->limits.num_qps, 451 mdev->limits.reserved_qps, 0); 452 if (!mdev->qp_table.qp_table) { 453 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 454 err = -ENOMEM; 455 goto err_unmap_mpt; 456 } 457 458 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 459 dev_lim->eqpc_entry_sz, 460 mdev->limits.num_qps, 461 mdev->limits.reserved_qps, 0); 462 if (!mdev->qp_table.eqp_table) { 463 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 464 err = -ENOMEM; 465 goto err_unmap_qp; 466 } 467 468 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 469 MTHCA_RDB_ENTRY_SIZE, 470 mdev->limits.num_qps << 471 mdev->qp_table.rdb_shift, 472 0, 0); 473 if (!mdev->qp_table.rdb_table) { 474 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 475 err = -ENOMEM; 476 goto err_unmap_eqp; 477 } 478 479 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 480 dev_lim->cqc_entry_sz, 481 mdev->limits.num_cqs, 482 mdev->limits.reserved_cqs, 0); 483 if (!mdev->cq_table.table) { 484 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 485 err = -ENOMEM; 486 goto err_unmap_rdb; 487 } 488 489 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 490 mdev->srq_table.table = 491 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 492 dev_lim->srq_entry_sz, 493 mdev->limits.num_srqs, 494 mdev->limits.reserved_srqs, 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); 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 523err_unmap_srq: 524 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 525 mthca_free_icm_table(mdev, mdev->srq_table.table); 526 527err_unmap_cq: 528 mthca_free_icm_table(mdev, mdev->cq_table.table); 529 530err_unmap_rdb: 531 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 532 533err_unmap_eqp: 534 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 535 536err_unmap_qp: 537 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 538 539err_unmap_mpt: 540 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 541 542err_unmap_mtt: 543 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 544 545err_unmap_eq: 546 mthca_unmap_eq_icm(mdev); 547 548err_unmap_aux: 549 mthca_UNMAP_ICM_AUX(mdev, &status); 550 551err_free_aux: 552 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 553 554 return err; 555} 556 557static void mthca_free_icms(struct mthca_dev *mdev) 558{ 559 u8 status; 560 561 mthca_free_icm_table(mdev, mdev->mcg_table.table); 562 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 563 mthca_free_icm_table(mdev, mdev->srq_table.table); 564 mthca_free_icm_table(mdev, mdev->cq_table.table); 565 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 566 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 567 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 568 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 569 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 570 mthca_unmap_eq_icm(mdev); 571 572 mthca_UNMAP_ICM_AUX(mdev, &status); 573 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 574} 575 576static int __devinit mthca_init_arbel(struct mthca_dev *mdev) 577{ 578 struct mthca_dev_lim dev_lim; 579 struct mthca_profile profile; 580 struct mthca_init_hca_param init_hca; 581 u64 icm_size; 582 u8 status; 583 int err; 584 585 err = mthca_QUERY_FW(mdev, &status); 586 if (err) { 587 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 588 return err; 589 } 590 if (status) { 591 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 592 "aborting.\n", status); 593 return -EINVAL; 594 } 595 596 err = mthca_ENABLE_LAM(mdev, &status); 597 if (err) { 598 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 599 return err; 600 } 601 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 602 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 603 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 604 } else if (status) { 605 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 606 "aborting.\n", status); 607 return -EINVAL; 608 } 609 610 err = mthca_load_fw(mdev); 611 if (err) { 612 mthca_err(mdev, "Failed to start FW, aborting.\n"); 613 goto err_disable; 614 } 615 616 err = mthca_dev_lim(mdev, &dev_lim); 617 if (err) { 618 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 619 goto err_stop_fw; 620 } 621 622 profile = default_profile; 623 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 624 profile.num_udav = 0; 625 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 626 profile.num_srq = dev_lim.max_srqs; 627 628 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 629 if ((int) icm_size < 0) { 630 err = icm_size; 631 goto err_stop_fw; 632 } 633 634 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 635 if (err) 636 goto err_stop_fw; 637 638 err = mthca_INIT_HCA(mdev, &init_hca, &status); 639 if (err) { 640 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 641 goto err_free_icm; 642 } 643 if (status) { 644 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 645 "aborting.\n", status); 646 err = -EINVAL; 647 goto err_free_icm; 648 } 649 650 return 0; 651 652err_free_icm: 653 mthca_free_icms(mdev); 654 655err_stop_fw: 656 mthca_UNMAP_FA(mdev, &status); 657 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 658 659err_disable: 660 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 661 mthca_DISABLE_LAM(mdev, &status); 662 663 return err; 664} 665 666static void mthca_close_hca(struct mthca_dev *mdev) 667{ 668 u8 status; 669 670 mthca_CLOSE_HCA(mdev, 0, &status); 671 672 if (mthca_is_memfree(mdev)) { 673 mthca_free_icms(mdev); 674 675 mthca_UNMAP_FA(mdev, &status); 676 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 677 678 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 679 mthca_DISABLE_LAM(mdev, &status); 680 } else 681 mthca_SYS_DIS(mdev, &status); 682} 683 684static int __devinit mthca_init_hca(struct mthca_dev *mdev) 685{ 686 u8 status; 687 int err; 688 struct mthca_adapter adapter; 689 690 if (mthca_is_memfree(mdev)) 691 err = mthca_init_arbel(mdev); 692 else 693 err = mthca_init_tavor(mdev); 694 695 if (err) 696 return err; 697 698 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 699 if (err) { 700 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 701 goto err_close; 702 } 703 if (status) { 704 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 705 "aborting.\n", status); 706 err = -EINVAL; 707 goto err_close; 708 } 709 710 mdev->eq_table.inta_pin = adapter.inta_pin; 711 mdev->rev_id = adapter.revision_id; 712 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 713 714 return 0; 715 716err_close: 717 mthca_close_hca(mdev); 718 return err; 719} 720 721static int __devinit mthca_setup_hca(struct mthca_dev *dev) 722{ 723 int err; 724 u8 status; 725 726 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 727 728 err = mthca_init_uar_table(dev); 729 if (err) { 730 mthca_err(dev, "Failed to initialize " 731 "user access region table, aborting.\n"); 732 return err; 733 } 734 735 err = mthca_uar_alloc(dev, &dev->driver_uar); 736 if (err) { 737 mthca_err(dev, "Failed to allocate driver access region, " 738 "aborting.\n"); 739 goto err_uar_table_free; 740 } 741 742 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 743 if (!dev->kar) { 744 mthca_err(dev, "Couldn't map kernel access region, " 745 "aborting.\n"); 746 err = -ENOMEM; 747 goto err_uar_free; 748 } 749 750 err = mthca_init_pd_table(dev); 751 if (err) { 752 mthca_err(dev, "Failed to initialize " 753 "protection domain table, aborting.\n"); 754 goto err_kar_unmap; 755 } 756 757 err = mthca_init_mr_table(dev); 758 if (err) { 759 mthca_err(dev, "Failed to initialize " 760 "memory region table, aborting.\n"); 761 goto err_pd_table_free; 762 } 763 764 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 765 if (err) { 766 mthca_err(dev, "Failed to create driver PD, " 767 "aborting.\n"); 768 goto err_mr_table_free; 769 } 770 771 err = mthca_init_eq_table(dev); 772 if (err) { 773 mthca_err(dev, "Failed to initialize " 774 "event queue table, aborting.\n"); 775 goto err_pd_free; 776 } 777 778 err = mthca_cmd_use_events(dev); 779 if (err) { 780 mthca_err(dev, "Failed to switch to event-driven " 781 "firmware commands, aborting.\n"); 782 goto err_eq_table_free; 783 } 784 785 err = mthca_NOP(dev, &status); 786 if (err || status) { 787 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", 788 dev->mthca_flags & MTHCA_FLAG_MSI_X ? 789 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : 790 dev->pdev->irq); 791 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) 792 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); 793 else 794 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 795 796 goto err_cmd_poll; 797 } 798 799 mthca_dbg(dev, "NOP command IRQ test passed\n"); 800 801 err = mthca_init_cq_table(dev); 802 if (err) { 803 mthca_err(dev, "Failed to initialize " 804 "completion queue table, aborting.\n"); 805 goto err_cmd_poll; 806 } 807 808 err = mthca_init_srq_table(dev); 809 if (err) { 810 mthca_err(dev, "Failed to initialize " 811 "shared receive queue table, aborting.\n"); 812 goto err_cq_table_free; 813 } 814 815 err = mthca_init_qp_table(dev); 816 if (err) { 817 mthca_err(dev, "Failed to initialize " 818 "queue pair table, aborting.\n"); 819 goto err_srq_table_free; 820 } 821 822 err = mthca_init_av_table(dev); 823 if (err) { 824 mthca_err(dev, "Failed to initialize " 825 "address vector table, aborting.\n"); 826 goto err_qp_table_free; 827 } 828 829 err = mthca_init_mcg_table(dev); 830 if (err) { 831 mthca_err(dev, "Failed to initialize " 832 "multicast group table, aborting.\n"); 833 goto err_av_table_free; 834 } 835 836 return 0; 837 838err_av_table_free: 839 mthca_cleanup_av_table(dev); 840 841err_qp_table_free: 842 mthca_cleanup_qp_table(dev); 843 844err_srq_table_free: 845 mthca_cleanup_srq_table(dev); 846 847err_cq_table_free: 848 mthca_cleanup_cq_table(dev); 849 850err_cmd_poll: 851 mthca_cmd_use_polling(dev); 852 853err_eq_table_free: 854 mthca_cleanup_eq_table(dev); 855 856err_pd_free: 857 mthca_pd_free(dev, &dev->driver_pd); 858 859err_mr_table_free: 860 mthca_cleanup_mr_table(dev); 861 862err_pd_table_free: 863 mthca_cleanup_pd_table(dev); 864 865err_kar_unmap: 866 iounmap(dev->kar); 867 868err_uar_free: 869 mthca_uar_free(dev, &dev->driver_uar); 870 871err_uar_table_free: 872 mthca_cleanup_uar_table(dev); 873 return err; 874} 875 876static int __devinit mthca_request_regions(struct pci_dev *pdev, 877 int ddr_hidden) 878{ 879 int err; 880 881 /* 882 * We can't just use pci_request_regions() because the MSI-X 883 * table is right in the middle of the first BAR. If we did 884 * pci_request_region and grab all of the first BAR, then 885 * setting up MSI-X would fail, since the PCI core wants to do 886 * request_mem_region on the MSI-X vector table. 887 * 888 * So just request what we need right now, and request any 889 * other regions we need when setting up EQs. 890 */ 891 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 892 MTHCA_HCR_SIZE, DRV_NAME)) 893 return -EBUSY; 894 895 err = pci_request_region(pdev, 2, DRV_NAME); 896 if (err) 897 goto err_bar2_failed; 898 899 if (!ddr_hidden) { 900 err = pci_request_region(pdev, 4, DRV_NAME); 901 if (err) 902 goto err_bar4_failed; 903 } 904 905 return 0; 906 907err_bar4_failed: 908 pci_release_region(pdev, 2); 909 910err_bar2_failed: 911 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 912 MTHCA_HCR_SIZE); 913 914 return err; 915} 916 917static void mthca_release_regions(struct pci_dev *pdev, 918 int ddr_hidden) 919{ 920 if (!ddr_hidden) 921 pci_release_region(pdev, 4); 922 923 pci_release_region(pdev, 2); 924 925 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 926 MTHCA_HCR_SIZE); 927} 928 929static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) 930{ 931 struct msix_entry entries[3]; 932 int err; 933 934 entries[0].entry = 0; 935 entries[1].entry = 1; 936 entries[2].entry = 2; 937 938 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 939 if (err) { 940 if (err > 0) 941 mthca_info(mdev, "Only %d MSI-X vectors available, " 942 "not using MSI-X\n", err); 943 return err; 944 } 945 946 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 947 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 948 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 949 950 return 0; 951} 952 953/* Types of supported HCA */ 954enum { 955 TAVOR, /* MT23108 */ 956 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 957 ARBEL_NATIVE, /* MT25208 with extended features */ 958 SINAI /* MT25204 */ 959}; 960 961#define MTHCA_FW_VER(major, minor, subminor) \ 962 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 963 964static struct { 965 u64 latest_fw; 966 u32 flags; 967} mthca_hca_table[] = { 968 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0), 969 .flags = 0 }, 970 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400), 971 .flags = MTHCA_FLAG_PCIE }, 972 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), 973 .flags = MTHCA_FLAG_MEMFREE | 974 MTHCA_FLAG_PCIE }, 975 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800), 976 .flags = MTHCA_FLAG_MEMFREE | 977 MTHCA_FLAG_PCIE | 978 MTHCA_FLAG_SINAI_OPT } 979}; 980 981static int __devinit mthca_init_one(struct pci_dev *pdev, 982 const struct pci_device_id *id) 983{ 984 static int mthca_version_printed = 0; 985 int ddr_hidden = 0; 986 int err; 987 struct mthca_dev *mdev; 988 989 if (!mthca_version_printed) { 990 printk(KERN_INFO "%s", mthca_version); 991 ++mthca_version_printed; 992 } 993 994 printk(KERN_INFO PFX "Initializing %s\n", 995 pci_name(pdev)); 996 997 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 998 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 999 pci_name(pdev), id->driver_data); 1000 return -ENODEV; 1001 } 1002 1003 err = pci_enable_device(pdev); 1004 if (err) { 1005 dev_err(&pdev->dev, "Cannot enable PCI device, " 1006 "aborting.\n"); 1007 return err; 1008 } 1009 1010 /* 1011 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 1012 * be present) 1013 */ 1014 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 1015 pci_resource_len(pdev, 0) != 1 << 20) { 1016 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 1017 err = -ENODEV; 1018 goto err_disable_pdev; 1019 } 1020 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 1021 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 1022 err = -ENODEV; 1023 goto err_disable_pdev; 1024 } 1025 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 1026 ddr_hidden = 1; 1027 1028 err = mthca_request_regions(pdev, ddr_hidden); 1029 if (err) { 1030 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 1031 "aborting.\n"); 1032 goto err_disable_pdev; 1033 } 1034 1035 pci_set_master(pdev); 1036 1037 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); 1038 if (err) { 1039 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 1040 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 1041 if (err) { 1042 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 1043 goto err_free_res; 1044 } 1045 } 1046 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 1047 if (err) { 1048 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 1049 "consistent PCI DMA mask.\n"); 1050 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 1051 if (err) { 1052 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 1053 "aborting.\n"); 1054 goto err_free_res; 1055 } 1056 } 1057 1058 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 1059 if (!mdev) { 1060 dev_err(&pdev->dev, "Device struct alloc failed, " 1061 "aborting.\n"); 1062 err = -ENOMEM; 1063 goto err_free_res; 1064 } 1065 1066 mdev->pdev = pdev; 1067 1068 mdev->mthca_flags = mthca_hca_table[id->driver_data].flags; 1069 if (ddr_hidden) 1070 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 1071 1072 /* 1073 * Now reset the HCA before we touch the PCI capabilities or 1074 * attempt a firmware command, since a boot ROM may have left 1075 * the HCA in an undefined state. 1076 */ 1077 err = mthca_reset(mdev); 1078 if (err) { 1079 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 1080 goto err_free_dev; 1081 } 1082 1083 if (msi_x && !mthca_enable_msi_x(mdev)) 1084 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1085 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && 1086 !pci_enable_msi(pdev)) 1087 mdev->mthca_flags |= MTHCA_FLAG_MSI; 1088 1089 if (mthca_cmd_init(mdev)) { 1090 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1091 goto err_free_dev; 1092 } 1093 1094 err = mthca_tune_pci(mdev); 1095 if (err) 1096 goto err_cmd; 1097 1098 err = mthca_init_hca(mdev); 1099 if (err) 1100 goto err_cmd; 1101 1102 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { 1103 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n", 1104 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1105 (int) (mdev->fw_ver & 0xffff), 1106 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), 1107 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, 1108 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); 1109 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1110 } 1111 1112 err = mthca_setup_hca(mdev); 1113 if (err) 1114 goto err_close; 1115 1116 err = mthca_register_device(mdev); 1117 if (err) 1118 goto err_cleanup; 1119 1120 err = mthca_create_agents(mdev); 1121 if (err) 1122 goto err_unregister; 1123 1124 pci_set_drvdata(pdev, mdev); 1125 1126 return 0; 1127 1128err_unregister: 1129 mthca_unregister_device(mdev); 1130 1131err_cleanup: 1132 mthca_cleanup_mcg_table(mdev); 1133 mthca_cleanup_av_table(mdev); 1134 mthca_cleanup_qp_table(mdev); 1135 mthca_cleanup_srq_table(mdev); 1136 mthca_cleanup_cq_table(mdev); 1137 mthca_cmd_use_polling(mdev); 1138 mthca_cleanup_eq_table(mdev); 1139 1140 mthca_pd_free(mdev, &mdev->driver_pd); 1141 1142 mthca_cleanup_mr_table(mdev); 1143 mthca_cleanup_pd_table(mdev); 1144 mthca_cleanup_uar_table(mdev); 1145 1146err_close: 1147 mthca_close_hca(mdev); 1148 1149err_cmd: 1150 mthca_cmd_cleanup(mdev); 1151 1152err_free_dev: 1153 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1154 pci_disable_msix(pdev); 1155 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1156 pci_disable_msi(pdev); 1157 1158 ib_dealloc_device(&mdev->ib_dev); 1159 1160err_free_res: 1161 mthca_release_regions(pdev, ddr_hidden); 1162 1163err_disable_pdev: 1164 pci_disable_device(pdev); 1165 pci_set_drvdata(pdev, NULL); 1166 return err; 1167} 1168 1169static void __devexit mthca_remove_one(struct pci_dev *pdev) 1170{ 1171 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1172 u8 status; 1173 int p; 1174 1175 if (mdev) { 1176 mthca_free_agents(mdev); 1177 mthca_unregister_device(mdev); 1178 1179 for (p = 1; p <= mdev->limits.num_ports; ++p) 1180 mthca_CLOSE_IB(mdev, p, &status); 1181 1182 mthca_cleanup_mcg_table(mdev); 1183 mthca_cleanup_av_table(mdev); 1184 mthca_cleanup_qp_table(mdev); 1185 mthca_cleanup_srq_table(mdev); 1186 mthca_cleanup_cq_table(mdev); 1187 mthca_cmd_use_polling(mdev); 1188 mthca_cleanup_eq_table(mdev); 1189 1190 mthca_pd_free(mdev, &mdev->driver_pd); 1191 1192 mthca_cleanup_mr_table(mdev); 1193 mthca_cleanup_pd_table(mdev); 1194 1195 iounmap(mdev->kar); 1196 mthca_uar_free(mdev, &mdev->driver_uar); 1197 mthca_cleanup_uar_table(mdev); 1198 mthca_close_hca(mdev); 1199 mthca_cmd_cleanup(mdev); 1200 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 mthca_release_regions(pdev, mdev->mthca_flags & 1208 MTHCA_FLAG_DDR_HIDDEN); 1209 pci_disable_device(pdev); 1210 pci_set_drvdata(pdev, NULL); 1211 } 1212} 1213 1214static struct pci_device_id mthca_pci_table[] = { 1215 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1216 .driver_data = TAVOR }, 1217 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1218 .driver_data = TAVOR }, 1219 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1220 .driver_data = ARBEL_COMPAT }, 1221 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1222 .driver_data = ARBEL_COMPAT }, 1223 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1224 .driver_data = ARBEL_NATIVE }, 1225 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1226 .driver_data = ARBEL_NATIVE }, 1227 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1228 .driver_data = SINAI }, 1229 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1230 .driver_data = SINAI }, 1231 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1232 .driver_data = SINAI }, 1233 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1234 .driver_data = SINAI }, 1235 { 0, } 1236}; 1237 1238MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1239 1240static struct pci_driver mthca_driver = { 1241 .name = DRV_NAME, 1242 .id_table = mthca_pci_table, 1243 .probe = mthca_init_one, 1244 .remove = __devexit_p(mthca_remove_one) 1245}; 1246 1247static int __init mthca_init(void) 1248{ 1249 int ret; 1250 1251 ret = pci_register_driver(&mthca_driver); 1252 return ret < 0 ? ret : 0; 1253} 1254 1255static void __exit mthca_cleanup(void) 1256{ 1257 pci_unregister_driver(&mthca_driver); 1258} 1259 1260module_init(mthca_init); 1261module_exit(mthca_cleanup); 1262