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 50 MODULE_AUTHOR("Roland Dreier"); 51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 52 MODULE_LICENSE("Dual BSD/GPL"); 53 MODULE_VERSION(DRV_VERSION); 54 55 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG 56 57 int mthca_debug_level = 0; 58 module_param_named(debug_level, mthca_debug_level, int, 0644); 59 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0"); 60 61 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */ 62 63 #ifdef CONFIG_PCI_MSI 64 65 static int msi_x = 0; 66 module_param(msi_x, int, 0444); 67 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 68 69 static int msi = 0; 70 module_param(msi, int, 0444); 71 MODULE_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 80 static int tune_pci = 0; 81 module_param(tune_pci, int, 0444); 82 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); 83 84 static const char mthca_version[] __devinitdata = 85 DRV_NAME ": Mellanox InfiniBand HCA driver v" 86 DRV_VERSION " (" DRV_RELDATE ")\n"; 87 88 static 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 }; 99 100 static 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 } 144 145 static 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%llx, aborting.\n", 176 dev_lim->uar_size, 177 (unsigned long long)pci_resource_len(mdev->pdev, 2)); 178 return -ENODEV; 179 } 180 181 mdev->limits.num_ports = dev_lim->num_ports; 182 mdev->limits.vl_cap = dev_lim->max_vl; 183 mdev->limits.mtu_cap = dev_lim->max_mtu; 184 mdev->limits.gid_table_len = dev_lim->max_gids; 185 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 186 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 187 mdev->limits.max_sg = dev_lim->max_sg; 188 mdev->limits.max_wqes = dev_lim->max_qp_sz; 189 mdev->limits.max_qp_init_rdma = dev_lim->max_requester_per_qp; 190 mdev->limits.reserved_qps = dev_lim->reserved_qps; 191 mdev->limits.max_srq_wqes = dev_lim->max_srq_sz; 192 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 193 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 194 mdev->limits.max_desc_sz = dev_lim->max_desc_sz; 195 mdev->limits.max_srq_sge = mthca_max_srq_sge(mdev); 196 /* 197 * Subtract 1 from the limit because we need to allocate a 198 * spare CQE so the HCA HW can tell the difference between an 199 * empty CQ and a full CQ. 200 */ 201 mdev->limits.max_cqes = dev_lim->max_cq_sz - 1; 202 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 203 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 204 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 205 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 206 mdev->limits.reserved_uars = dev_lim->reserved_uars; 207 mdev->limits.reserved_pds = dev_lim->reserved_pds; 208 mdev->limits.port_width_cap = dev_lim->max_port_width; 209 mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1); 210 mdev->limits.flags = dev_lim->flags; 211 /* 212 * For old FW that doesn't return static rate support, use a 213 * value of 0x3 (only static rate values of 0 or 1 are handled), 214 * except on Sinai, where even old FW can handle static rate 215 * values of 2 and 3. 216 */ 217 if (dev_lim->stat_rate_support) 218 mdev->limits.stat_rate_support = dev_lim->stat_rate_support; 219 else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 220 mdev->limits.stat_rate_support = 0xf; 221 else 222 mdev->limits.stat_rate_support = 0x3; 223 224 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 225 May be doable since hardware supports it for SRQ. 226 227 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 228 229 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 230 supported by driver. */ 231 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 232 IB_DEVICE_PORT_ACTIVE_EVENT | 233 IB_DEVICE_SYS_IMAGE_GUID | 234 IB_DEVICE_RC_RNR_NAK_GEN; 235 236 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 237 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 238 239 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 240 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 241 242 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 243 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 244 245 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 246 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 247 248 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 249 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 250 251 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 252 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 253 254 return 0; 255 } 256 257 static int __devinit mthca_init_tavor(struct mthca_dev *mdev) 258 { 259 u8 status; 260 int err; 261 struct mthca_dev_lim dev_lim; 262 struct mthca_profile profile; 263 struct mthca_init_hca_param init_hca; 264 265 err = mthca_SYS_EN(mdev, &status); 266 if (err) { 267 mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 268 return err; 269 } 270 if (status) { 271 mthca_err(mdev, "SYS_EN returned status 0x%02x, " 272 "aborting.\n", status); 273 return -EINVAL; 274 } 275 276 err = mthca_QUERY_FW(mdev, &status); 277 if (err) { 278 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 279 goto err_disable; 280 } 281 if (status) { 282 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 283 "aborting.\n", status); 284 err = -EINVAL; 285 goto err_disable; 286 } 287 err = mthca_QUERY_DDR(mdev, &status); 288 if (err) { 289 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 290 goto err_disable; 291 } 292 if (status) { 293 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 294 "aborting.\n", status); 295 err = -EINVAL; 296 goto err_disable; 297 } 298 299 err = mthca_dev_lim(mdev, &dev_lim); 300 if (err) { 301 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 302 goto err_disable; 303 } 304 305 profile = default_profile; 306 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 307 profile.uarc_size = 0; 308 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 309 profile.num_srq = dev_lim.max_srqs; 310 311 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 312 if (err < 0) 313 goto err_disable; 314 315 err = mthca_INIT_HCA(mdev, &init_hca, &status); 316 if (err) { 317 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 318 goto err_disable; 319 } 320 if (status) { 321 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 322 "aborting.\n", status); 323 err = -EINVAL; 324 goto err_disable; 325 } 326 327 return 0; 328 329 err_disable: 330 mthca_SYS_DIS(mdev, &status); 331 332 return err; 333 } 334 335 static int __devinit mthca_load_fw(struct mthca_dev *mdev) 336 { 337 u8 status; 338 int err; 339 340 /* FIXME: use HCA-attached memory for FW if present */ 341 342 mdev->fw.arbel.fw_icm = 343 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 344 GFP_HIGHUSER | __GFP_NOWARN); 345 if (!mdev->fw.arbel.fw_icm) { 346 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 347 return -ENOMEM; 348 } 349 350 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 351 if (err) { 352 mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 353 goto err_free; 354 } 355 if (status) { 356 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 357 err = -EINVAL; 358 goto err_free; 359 } 360 err = mthca_RUN_FW(mdev, &status); 361 if (err) { 362 mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 363 goto err_unmap_fa; 364 } 365 if (status) { 366 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 367 err = -EINVAL; 368 goto err_unmap_fa; 369 } 370 371 return 0; 372 373 err_unmap_fa: 374 mthca_UNMAP_FA(mdev, &status); 375 376 err_free: 377 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 378 return err; 379 } 380 381 static int __devinit 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 u8 status; 388 int err; 389 390 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 391 if (err) { 392 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 393 return err; 394 } 395 if (status) { 396 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 397 "aborting.\n", status); 398 return -EINVAL; 399 } 400 401 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 402 (unsigned long long) icm_size >> 10, 403 (unsigned long long) aux_pages << 2); 404 405 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 406 GFP_HIGHUSER | __GFP_NOWARN); 407 if (!mdev->fw.arbel.aux_icm) { 408 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 409 return -ENOMEM; 410 } 411 412 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 413 if (err) { 414 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 415 goto err_free_aux; 416 } 417 if (status) { 418 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 419 err = -EINVAL; 420 goto err_free_aux; 421 } 422 423 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 424 if (err) { 425 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 426 goto err_unmap_aux; 427 } 428 429 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 430 MTHCA_MTT_SEG_SIZE, 431 mdev->limits.num_mtt_segs, 432 mdev->limits.reserved_mtts, 1); 433 if (!mdev->mr_table.mtt_table) { 434 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 435 err = -ENOMEM; 436 goto err_unmap_eq; 437 } 438 439 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 440 dev_lim->mpt_entry_sz, 441 mdev->limits.num_mpts, 442 mdev->limits.reserved_mrws, 1); 443 if (!mdev->mr_table.mpt_table) { 444 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 445 err = -ENOMEM; 446 goto err_unmap_mtt; 447 } 448 449 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 450 dev_lim->qpc_entry_sz, 451 mdev->limits.num_qps, 452 mdev->limits.reserved_qps, 0); 453 if (!mdev->qp_table.qp_table) { 454 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 455 err = -ENOMEM; 456 goto err_unmap_mpt; 457 } 458 459 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 460 dev_lim->eqpc_entry_sz, 461 mdev->limits.num_qps, 462 mdev->limits.reserved_qps, 0); 463 if (!mdev->qp_table.eqp_table) { 464 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 465 err = -ENOMEM; 466 goto err_unmap_qp; 467 } 468 469 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 470 MTHCA_RDB_ENTRY_SIZE, 471 mdev->limits.num_qps << 472 mdev->qp_table.rdb_shift, 473 0, 0); 474 if (!mdev->qp_table.rdb_table) { 475 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 476 err = -ENOMEM; 477 goto err_unmap_eqp; 478 } 479 480 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 481 dev_lim->cqc_entry_sz, 482 mdev->limits.num_cqs, 483 mdev->limits.reserved_cqs, 0); 484 if (!mdev->cq_table.table) { 485 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 486 err = -ENOMEM; 487 goto err_unmap_rdb; 488 } 489 490 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 491 mdev->srq_table.table = 492 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 493 dev_lim->srq_entry_sz, 494 mdev->limits.num_srqs, 495 mdev->limits.reserved_srqs, 0); 496 if (!mdev->srq_table.table) { 497 mthca_err(mdev, "Failed to map SRQ context memory, " 498 "aborting.\n"); 499 err = -ENOMEM; 500 goto err_unmap_cq; 501 } 502 } 503 504 /* 505 * It's not strictly required, but for simplicity just map the 506 * whole multicast group table now. The table isn't very big 507 * and it's a lot easier than trying to track ref counts. 508 */ 509 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 510 MTHCA_MGM_ENTRY_SIZE, 511 mdev->limits.num_mgms + 512 mdev->limits.num_amgms, 513 mdev->limits.num_mgms + 514 mdev->limits.num_amgms, 515 0); 516 if (!mdev->mcg_table.table) { 517 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 518 err = -ENOMEM; 519 goto err_unmap_srq; 520 } 521 522 return 0; 523 524 err_unmap_srq: 525 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 526 mthca_free_icm_table(mdev, mdev->srq_table.table); 527 528 err_unmap_cq: 529 mthca_free_icm_table(mdev, mdev->cq_table.table); 530 531 err_unmap_rdb: 532 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 533 534 err_unmap_eqp: 535 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 536 537 err_unmap_qp: 538 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 539 540 err_unmap_mpt: 541 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 542 543 err_unmap_mtt: 544 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 545 546 err_unmap_eq: 547 mthca_unmap_eq_icm(mdev); 548 549 err_unmap_aux: 550 mthca_UNMAP_ICM_AUX(mdev, &status); 551 552 err_free_aux: 553 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 554 555 return err; 556 } 557 558 static void mthca_free_icms(struct mthca_dev *mdev) 559 { 560 u8 status; 561 562 mthca_free_icm_table(mdev, mdev->mcg_table.table); 563 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 564 mthca_free_icm_table(mdev, mdev->srq_table.table); 565 mthca_free_icm_table(mdev, mdev->cq_table.table); 566 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 567 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 568 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 569 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 570 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 571 mthca_unmap_eq_icm(mdev); 572 573 mthca_UNMAP_ICM_AUX(mdev, &status); 574 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 575 } 576 577 static int __devinit mthca_init_arbel(struct mthca_dev *mdev) 578 { 579 struct mthca_dev_lim dev_lim; 580 struct mthca_profile profile; 581 struct mthca_init_hca_param init_hca; 582 u64 icm_size; 583 u8 status; 584 int err; 585 586 err = mthca_QUERY_FW(mdev, &status); 587 if (err) { 588 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 589 return err; 590 } 591 if (status) { 592 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 593 "aborting.\n", status); 594 return -EINVAL; 595 } 596 597 err = mthca_ENABLE_LAM(mdev, &status); 598 if (err) { 599 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 600 return err; 601 } 602 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 603 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 604 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 605 } else if (status) { 606 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 607 "aborting.\n", status); 608 return -EINVAL; 609 } 610 611 err = mthca_load_fw(mdev); 612 if (err) { 613 mthca_err(mdev, "Failed to start FW, aborting.\n"); 614 goto err_disable; 615 } 616 617 err = mthca_dev_lim(mdev, &dev_lim); 618 if (err) { 619 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 620 goto err_stop_fw; 621 } 622 623 profile = default_profile; 624 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 625 profile.num_udav = 0; 626 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 627 profile.num_srq = dev_lim.max_srqs; 628 629 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 630 if ((int) icm_size < 0) { 631 err = icm_size; 632 goto err_stop_fw; 633 } 634 635 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 636 if (err) 637 goto err_stop_fw; 638 639 err = mthca_INIT_HCA(mdev, &init_hca, &status); 640 if (err) { 641 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 642 goto err_free_icm; 643 } 644 if (status) { 645 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 646 "aborting.\n", status); 647 err = -EINVAL; 648 goto err_free_icm; 649 } 650 651 return 0; 652 653 err_free_icm: 654 mthca_free_icms(mdev); 655 656 err_stop_fw: 657 mthca_UNMAP_FA(mdev, &status); 658 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 659 660 err_disable: 661 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 662 mthca_DISABLE_LAM(mdev, &status); 663 664 return err; 665 } 666 667 static void mthca_close_hca(struct mthca_dev *mdev) 668 { 669 u8 status; 670 671 mthca_CLOSE_HCA(mdev, 0, &status); 672 673 if (mthca_is_memfree(mdev)) { 674 mthca_free_icms(mdev); 675 676 mthca_UNMAP_FA(mdev, &status); 677 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 678 679 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 680 mthca_DISABLE_LAM(mdev, &status); 681 } else 682 mthca_SYS_DIS(mdev, &status); 683 } 684 685 static int __devinit mthca_init_hca(struct mthca_dev *mdev) 686 { 687 u8 status; 688 int err; 689 struct mthca_adapter adapter; 690 691 if (mthca_is_memfree(mdev)) 692 err = mthca_init_arbel(mdev); 693 else 694 err = mthca_init_tavor(mdev); 695 696 if (err) 697 return err; 698 699 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 700 if (err) { 701 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 702 goto err_close; 703 } 704 if (status) { 705 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 706 "aborting.\n", status); 707 err = -EINVAL; 708 goto err_close; 709 } 710 711 mdev->eq_table.inta_pin = adapter.inta_pin; 712 mdev->rev_id = adapter.revision_id; 713 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 714 715 return 0; 716 717 err_close: 718 mthca_close_hca(mdev); 719 return err; 720 } 721 722 static int __devinit mthca_setup_hca(struct mthca_dev *dev) 723 { 724 int err; 725 u8 status; 726 727 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 728 729 err = mthca_init_uar_table(dev); 730 if (err) { 731 mthca_err(dev, "Failed to initialize " 732 "user access region table, aborting.\n"); 733 return err; 734 } 735 736 err = mthca_uar_alloc(dev, &dev->driver_uar); 737 if (err) { 738 mthca_err(dev, "Failed to allocate driver access region, " 739 "aborting.\n"); 740 goto err_uar_table_free; 741 } 742 743 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 744 if (!dev->kar) { 745 mthca_err(dev, "Couldn't map kernel access region, " 746 "aborting.\n"); 747 err = -ENOMEM; 748 goto err_uar_free; 749 } 750 751 err = mthca_init_pd_table(dev); 752 if (err) { 753 mthca_err(dev, "Failed to initialize " 754 "protection domain table, aborting.\n"); 755 goto err_kar_unmap; 756 } 757 758 err = mthca_init_mr_table(dev); 759 if (err) { 760 mthca_err(dev, "Failed to initialize " 761 "memory region table, aborting.\n"); 762 goto err_pd_table_free; 763 } 764 765 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 766 if (err) { 767 mthca_err(dev, "Failed to create driver PD, " 768 "aborting.\n"); 769 goto err_mr_table_free; 770 } 771 772 err = mthca_init_eq_table(dev); 773 if (err) { 774 mthca_err(dev, "Failed to initialize " 775 "event queue table, aborting.\n"); 776 goto err_pd_free; 777 } 778 779 err = mthca_cmd_use_events(dev); 780 if (err) { 781 mthca_err(dev, "Failed to switch to event-driven " 782 "firmware commands, aborting.\n"); 783 goto err_eq_table_free; 784 } 785 786 err = mthca_NOP(dev, &status); 787 if (err || status) { 788 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", 789 dev->mthca_flags & MTHCA_FLAG_MSI_X ? 790 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : 791 dev->pdev->irq); 792 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) 793 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); 794 else 795 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 796 797 goto err_cmd_poll; 798 } 799 800 mthca_dbg(dev, "NOP command IRQ test passed\n"); 801 802 err = mthca_init_cq_table(dev); 803 if (err) { 804 mthca_err(dev, "Failed to initialize " 805 "completion queue table, aborting.\n"); 806 goto err_cmd_poll; 807 } 808 809 err = mthca_init_srq_table(dev); 810 if (err) { 811 mthca_err(dev, "Failed to initialize " 812 "shared receive queue table, aborting.\n"); 813 goto err_cq_table_free; 814 } 815 816 err = mthca_init_qp_table(dev); 817 if (err) { 818 mthca_err(dev, "Failed to initialize " 819 "queue pair table, aborting.\n"); 820 goto err_srq_table_free; 821 } 822 823 err = mthca_init_av_table(dev); 824 if (err) { 825 mthca_err(dev, "Failed to initialize " 826 "address vector table, aborting.\n"); 827 goto err_qp_table_free; 828 } 829 830 err = mthca_init_mcg_table(dev); 831 if (err) { 832 mthca_err(dev, "Failed to initialize " 833 "multicast group table, aborting.\n"); 834 goto err_av_table_free; 835 } 836 837 return 0; 838 839 err_av_table_free: 840 mthca_cleanup_av_table(dev); 841 842 err_qp_table_free: 843 mthca_cleanup_qp_table(dev); 844 845 err_srq_table_free: 846 mthca_cleanup_srq_table(dev); 847 848 err_cq_table_free: 849 mthca_cleanup_cq_table(dev); 850 851 err_cmd_poll: 852 mthca_cmd_use_polling(dev); 853 854 err_eq_table_free: 855 mthca_cleanup_eq_table(dev); 856 857 err_pd_free: 858 mthca_pd_free(dev, &dev->driver_pd); 859 860 err_mr_table_free: 861 mthca_cleanup_mr_table(dev); 862 863 err_pd_table_free: 864 mthca_cleanup_pd_table(dev); 865 866 err_kar_unmap: 867 iounmap(dev->kar); 868 869 err_uar_free: 870 mthca_uar_free(dev, &dev->driver_uar); 871 872 err_uar_table_free: 873 mthca_cleanup_uar_table(dev); 874 return err; 875 } 876 877 static int __devinit mthca_request_regions(struct pci_dev *pdev, 878 int ddr_hidden) 879 { 880 int err; 881 882 /* 883 * We can't just use pci_request_regions() because the MSI-X 884 * table is right in the middle of the first BAR. If we did 885 * pci_request_region and grab all of the first BAR, then 886 * setting up MSI-X would fail, since the PCI core wants to do 887 * request_mem_region on the MSI-X vector table. 888 * 889 * So just request what we need right now, and request any 890 * other regions we need when setting up EQs. 891 */ 892 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 893 MTHCA_HCR_SIZE, DRV_NAME)) 894 return -EBUSY; 895 896 err = pci_request_region(pdev, 2, DRV_NAME); 897 if (err) 898 goto err_bar2_failed; 899 900 if (!ddr_hidden) { 901 err = pci_request_region(pdev, 4, DRV_NAME); 902 if (err) 903 goto err_bar4_failed; 904 } 905 906 return 0; 907 908 err_bar4_failed: 909 pci_release_region(pdev, 2); 910 911 err_bar2_failed: 912 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 913 MTHCA_HCR_SIZE); 914 915 return err; 916 } 917 918 static void mthca_release_regions(struct pci_dev *pdev, 919 int ddr_hidden) 920 { 921 if (!ddr_hidden) 922 pci_release_region(pdev, 4); 923 924 pci_release_region(pdev, 2); 925 926 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 927 MTHCA_HCR_SIZE); 928 } 929 930 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) 931 { 932 struct msix_entry entries[3]; 933 int err; 934 935 entries[0].entry = 0; 936 entries[1].entry = 1; 937 entries[2].entry = 2; 938 939 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 940 if (err) { 941 if (err > 0) 942 mthca_info(mdev, "Only %d MSI-X vectors available, " 943 "not using MSI-X\n", err); 944 return err; 945 } 946 947 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 948 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 949 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 950 951 return 0; 952 } 953 954 /* Types of supported HCA */ 955 enum { 956 TAVOR, /* MT23108 */ 957 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 958 ARBEL_NATIVE, /* MT25208 with extended features */ 959 SINAI /* MT25204 */ 960 }; 961 962 #define MTHCA_FW_VER(major, minor, subminor) \ 963 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 964 965 static struct { 966 u64 latest_fw; 967 u32 flags; 968 } mthca_hca_table[] = { 969 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 4, 0), 970 .flags = 0 }, 971 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400), 972 .flags = MTHCA_FLAG_PCIE }, 973 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), 974 .flags = MTHCA_FLAG_MEMFREE | 975 MTHCA_FLAG_PCIE }, 976 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 800), 977 .flags = MTHCA_FLAG_MEMFREE | 978 MTHCA_FLAG_PCIE | 979 MTHCA_FLAG_SINAI_OPT } 980 }; 981 982 static int __devinit mthca_init_one(struct pci_dev *pdev, 983 const struct pci_device_id *id) 984 { 985 static int mthca_version_printed = 0; 986 int ddr_hidden = 0; 987 int err; 988 struct mthca_dev *mdev; 989 990 if (!mthca_version_printed) { 991 printk(KERN_INFO "%s", mthca_version); 992 ++mthca_version_printed; 993 } 994 995 printk(KERN_INFO PFX "Initializing %s\n", 996 pci_name(pdev)); 997 998 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 999 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 1000 pci_name(pdev), id->driver_data); 1001 return -ENODEV; 1002 } 1003 1004 err = pci_enable_device(pdev); 1005 if (err) { 1006 dev_err(&pdev->dev, "Cannot enable PCI device, " 1007 "aborting.\n"); 1008 return err; 1009 } 1010 1011 /* 1012 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 1013 * be present) 1014 */ 1015 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 1016 pci_resource_len(pdev, 0) != 1 << 20) { 1017 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 1018 err = -ENODEV; 1019 goto err_disable_pdev; 1020 } 1021 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) { 1022 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 1023 err = -ENODEV; 1024 goto err_disable_pdev; 1025 } 1026 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 1027 ddr_hidden = 1; 1028 1029 err = mthca_request_regions(pdev, ddr_hidden); 1030 if (err) { 1031 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 1032 "aborting.\n"); 1033 goto err_disable_pdev; 1034 } 1035 1036 pci_set_master(pdev); 1037 1038 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); 1039 if (err) { 1040 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 1041 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 1042 if (err) { 1043 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 1044 goto err_free_res; 1045 } 1046 } 1047 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 1048 if (err) { 1049 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 1050 "consistent PCI DMA mask.\n"); 1051 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 1052 if (err) { 1053 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 1054 "aborting.\n"); 1055 goto err_free_res; 1056 } 1057 } 1058 1059 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 1060 if (!mdev) { 1061 dev_err(&pdev->dev, "Device struct alloc failed, " 1062 "aborting.\n"); 1063 err = -ENOMEM; 1064 goto err_free_res; 1065 } 1066 1067 mdev->pdev = pdev; 1068 1069 mdev->mthca_flags = mthca_hca_table[id->driver_data].flags; 1070 if (ddr_hidden) 1071 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 1072 1073 /* 1074 * Now reset the HCA before we touch the PCI capabilities or 1075 * attempt a firmware command, since a boot ROM may have left 1076 * the HCA in an undefined state. 1077 */ 1078 err = mthca_reset(mdev); 1079 if (err) { 1080 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 1081 goto err_free_dev; 1082 } 1083 1084 if (msi_x && !mthca_enable_msi_x(mdev)) 1085 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1086 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && 1087 !pci_enable_msi(pdev)) 1088 mdev->mthca_flags |= MTHCA_FLAG_MSI; 1089 1090 if (mthca_cmd_init(mdev)) { 1091 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1092 goto err_free_dev; 1093 } 1094 1095 err = mthca_tune_pci(mdev); 1096 if (err) 1097 goto err_cmd; 1098 1099 err = mthca_init_hca(mdev); 1100 if (err) 1101 goto err_cmd; 1102 1103 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { 1104 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n", 1105 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1106 (int) (mdev->fw_ver & 0xffff), 1107 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), 1108 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, 1109 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); 1110 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1111 } 1112 1113 err = mthca_setup_hca(mdev); 1114 if (err) 1115 goto err_close; 1116 1117 err = mthca_register_device(mdev); 1118 if (err) 1119 goto err_cleanup; 1120 1121 err = mthca_create_agents(mdev); 1122 if (err) 1123 goto err_unregister; 1124 1125 pci_set_drvdata(pdev, mdev); 1126 1127 return 0; 1128 1129 err_unregister: 1130 mthca_unregister_device(mdev); 1131 1132 err_cleanup: 1133 mthca_cleanup_mcg_table(mdev); 1134 mthca_cleanup_av_table(mdev); 1135 mthca_cleanup_qp_table(mdev); 1136 mthca_cleanup_srq_table(mdev); 1137 mthca_cleanup_cq_table(mdev); 1138 mthca_cmd_use_polling(mdev); 1139 mthca_cleanup_eq_table(mdev); 1140 1141 mthca_pd_free(mdev, &mdev->driver_pd); 1142 1143 mthca_cleanup_mr_table(mdev); 1144 mthca_cleanup_pd_table(mdev); 1145 mthca_cleanup_uar_table(mdev); 1146 1147 err_close: 1148 mthca_close_hca(mdev); 1149 1150 err_cmd: 1151 mthca_cmd_cleanup(mdev); 1152 1153 err_free_dev: 1154 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1155 pci_disable_msix(pdev); 1156 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1157 pci_disable_msi(pdev); 1158 1159 ib_dealloc_device(&mdev->ib_dev); 1160 1161 err_free_res: 1162 mthca_release_regions(pdev, ddr_hidden); 1163 1164 err_disable_pdev: 1165 pci_disable_device(pdev); 1166 pci_set_drvdata(pdev, NULL); 1167 return err; 1168 } 1169 1170 static void __devexit mthca_remove_one(struct pci_dev *pdev) 1171 { 1172 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1173 u8 status; 1174 int p; 1175 1176 if (mdev) { 1177 mthca_free_agents(mdev); 1178 mthca_unregister_device(mdev); 1179 1180 for (p = 1; p <= mdev->limits.num_ports; ++p) 1181 mthca_CLOSE_IB(mdev, p, &status); 1182 1183 mthca_cleanup_mcg_table(mdev); 1184 mthca_cleanup_av_table(mdev); 1185 mthca_cleanup_qp_table(mdev); 1186 mthca_cleanup_srq_table(mdev); 1187 mthca_cleanup_cq_table(mdev); 1188 mthca_cmd_use_polling(mdev); 1189 mthca_cleanup_eq_table(mdev); 1190 1191 mthca_pd_free(mdev, &mdev->driver_pd); 1192 1193 mthca_cleanup_mr_table(mdev); 1194 mthca_cleanup_pd_table(mdev); 1195 1196 iounmap(mdev->kar); 1197 mthca_uar_free(mdev, &mdev->driver_uar); 1198 mthca_cleanup_uar_table(mdev); 1199 mthca_close_hca(mdev); 1200 mthca_cmd_cleanup(mdev); 1201 1202 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1203 pci_disable_msix(pdev); 1204 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1205 pci_disable_msi(pdev); 1206 1207 ib_dealloc_device(&mdev->ib_dev); 1208 mthca_release_regions(pdev, mdev->mthca_flags & 1209 MTHCA_FLAG_DDR_HIDDEN); 1210 pci_disable_device(pdev); 1211 pci_set_drvdata(pdev, NULL); 1212 } 1213 } 1214 1215 static struct pci_device_id mthca_pci_table[] = { 1216 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1217 .driver_data = TAVOR }, 1218 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1219 .driver_data = TAVOR }, 1220 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1221 .driver_data = ARBEL_COMPAT }, 1222 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1223 .driver_data = ARBEL_COMPAT }, 1224 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1225 .driver_data = ARBEL_NATIVE }, 1226 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1227 .driver_data = ARBEL_NATIVE }, 1228 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1229 .driver_data = SINAI }, 1230 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1231 .driver_data = SINAI }, 1232 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1233 .driver_data = SINAI }, 1234 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1235 .driver_data = SINAI }, 1236 { 0, } 1237 }; 1238 1239 MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1240 1241 static struct pci_driver mthca_driver = { 1242 .name = DRV_NAME, 1243 .id_table = mthca_pci_table, 1244 .probe = mthca_init_one, 1245 .remove = __devexit_p(mthca_remove_one) 1246 }; 1247 1248 static int __init mthca_init(void) 1249 { 1250 int ret; 1251 1252 ret = pci_register_driver(&mthca_driver); 1253 return ret < 0 ? ret : 0; 1254 } 1255 1256 static void __exit mthca_cleanup(void) 1257 { 1258 pci_unregister_driver(&mthca_driver); 1259 } 1260 1261 module_init(mthca_init); 1262 module_exit(mthca_cleanup); 1263