mthca_main.c revision 33033b797225553e48ca68d8d8dc5e64ec22e02b
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_PCI_MSI 56 57static int msi_x = 0; 58module_param(msi_x, int, 0444); 59MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 60 61static int msi = 0; 62module_param(msi, int, 0444); 63MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); 64 65#else /* CONFIG_PCI_MSI */ 66 67#define msi_x (0) 68#define msi (0) 69 70#endif /* CONFIG_PCI_MSI */ 71 72static const char mthca_version[] __devinitdata = 73 DRV_NAME ": Mellanox InfiniBand HCA driver v" 74 DRV_VERSION " (" DRV_RELDATE ")\n"; 75 76static struct mthca_profile default_profile = { 77 .num_qp = 1 << 16, 78 .rdb_per_qp = 4, 79 .num_cq = 1 << 16, 80 .num_mcg = 1 << 13, 81 .num_mpt = 1 << 17, 82 .num_mtt = 1 << 20, 83 .num_udav = 1 << 15, /* Tavor only */ 84 .fmr_reserved_mtts = 1 << 18, /* Tavor only */ 85 .uarc_size = 1 << 18, /* Arbel only */ 86}; 87 88static int __devinit mthca_tune_pci(struct mthca_dev *mdev) 89{ 90 int cap; 91 u16 val; 92 93 /* First try to max out Read Byte Count */ 94 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); 95 if (cap) { 96 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { 97 mthca_err(mdev, "Couldn't read PCI-X command register, " 98 "aborting.\n"); 99 return -ENODEV; 100 } 101 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); 102 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { 103 mthca_err(mdev, "Couldn't write PCI-X command register, " 104 "aborting.\n"); 105 return -ENODEV; 106 } 107 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 108 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 109 110 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); 111 if (cap) { 112 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { 113 mthca_err(mdev, "Couldn't read PCI Express device control " 114 "register, aborting.\n"); 115 return -ENODEV; 116 } 117 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); 118 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { 119 mthca_err(mdev, "Couldn't write PCI Express device control " 120 "register, aborting.\n"); 121 return -ENODEV; 122 } 123 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 124 mthca_info(mdev, "No PCI Express capability, " 125 "not setting Max Read Request Size.\n"); 126 127 return 0; 128} 129 130static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 131{ 132 int err; 133 u8 status; 134 135 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); 136 if (err) { 137 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 138 return err; 139 } 140 if (status) { 141 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " 142 "aborting.\n", status); 143 return -EINVAL; 144 } 145 if (dev_lim->min_page_sz > PAGE_SIZE) { 146 mthca_err(mdev, "HCA minimum page size of %d bigger than " 147 "kernel PAGE_SIZE of %ld, aborting.\n", 148 dev_lim->min_page_sz, PAGE_SIZE); 149 return -ENODEV; 150 } 151 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 152 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 153 "aborting.\n", 154 dev_lim->num_ports, MTHCA_MAX_PORTS); 155 return -ENODEV; 156 } 157 158 mdev->limits.num_ports = dev_lim->num_ports; 159 mdev->limits.vl_cap = dev_lim->max_vl; 160 mdev->limits.mtu_cap = dev_lim->max_mtu; 161 mdev->limits.gid_table_len = dev_lim->max_gids; 162 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 163 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 164 mdev->limits.max_sg = dev_lim->max_sg; 165 mdev->limits.reserved_qps = dev_lim->reserved_qps; 166 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 167 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 168 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 169 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 170 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 171 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 172 mdev->limits.reserved_uars = dev_lim->reserved_uars; 173 mdev->limits.reserved_pds = dev_lim->reserved_pds; 174 mdev->limits.port_width_cap = dev_lim->max_port_width; 175 mdev->limits.flags = dev_lim->flags; 176 177 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 178 May be doable since hardware supports it for SRQ. 179 180 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 181 182 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 183 supported by driver. */ 184 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 185 IB_DEVICE_PORT_ACTIVE_EVENT | 186 IB_DEVICE_SYS_IMAGE_GUID | 187 IB_DEVICE_RC_RNR_NAK_GEN; 188 189 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 190 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 191 192 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 193 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 194 195 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 196 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 197 198 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 199 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 200 201 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 202 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 203 204 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 205 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 206 207 return 0; 208} 209 210static int __devinit mthca_init_tavor(struct mthca_dev *mdev) 211{ 212 u8 status; 213 int err; 214 struct mthca_dev_lim dev_lim; 215 struct mthca_profile profile; 216 struct mthca_init_hca_param init_hca; 217 218 err = mthca_SYS_EN(mdev, &status); 219 if (err) { 220 mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 221 return err; 222 } 223 if (status) { 224 mthca_err(mdev, "SYS_EN returned status 0x%02x, " 225 "aborting.\n", status); 226 return -EINVAL; 227 } 228 229 err = mthca_QUERY_FW(mdev, &status); 230 if (err) { 231 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 232 goto err_disable; 233 } 234 if (status) { 235 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 236 "aborting.\n", status); 237 err = -EINVAL; 238 goto err_disable; 239 } 240 err = mthca_QUERY_DDR(mdev, &status); 241 if (err) { 242 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 243 goto err_disable; 244 } 245 if (status) { 246 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 247 "aborting.\n", status); 248 err = -EINVAL; 249 goto err_disable; 250 } 251 252 err = mthca_dev_lim(mdev, &dev_lim); 253 254 profile = default_profile; 255 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 256 profile.uarc_size = 0; 257 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 258 profile.num_srq = dev_lim.max_srqs; 259 260 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 261 if (err < 0) 262 goto err_disable; 263 264 err = mthca_INIT_HCA(mdev, &init_hca, &status); 265 if (err) { 266 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 267 goto err_disable; 268 } 269 if (status) { 270 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 271 "aborting.\n", status); 272 err = -EINVAL; 273 goto err_disable; 274 } 275 276 return 0; 277 278err_disable: 279 mthca_SYS_DIS(mdev, &status); 280 281 return err; 282} 283 284static int __devinit mthca_load_fw(struct mthca_dev *mdev) 285{ 286 u8 status; 287 int err; 288 289 /* FIXME: use HCA-attached memory for FW if present */ 290 291 mdev->fw.arbel.fw_icm = 292 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 293 GFP_HIGHUSER | __GFP_NOWARN); 294 if (!mdev->fw.arbel.fw_icm) { 295 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 296 return -ENOMEM; 297 } 298 299 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 300 if (err) { 301 mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 302 goto err_free; 303 } 304 if (status) { 305 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 306 err = -EINVAL; 307 goto err_free; 308 } 309 err = mthca_RUN_FW(mdev, &status); 310 if (err) { 311 mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 312 goto err_unmap_fa; 313 } 314 if (status) { 315 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 316 err = -EINVAL; 317 goto err_unmap_fa; 318 } 319 320 return 0; 321 322err_unmap_fa: 323 mthca_UNMAP_FA(mdev, &status); 324 325err_free: 326 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 327 return err; 328} 329 330static int __devinit mthca_init_icm(struct mthca_dev *mdev, 331 struct mthca_dev_lim *dev_lim, 332 struct mthca_init_hca_param *init_hca, 333 u64 icm_size) 334{ 335 u64 aux_pages; 336 u8 status; 337 int err; 338 339 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 340 if (err) { 341 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 342 return err; 343 } 344 if (status) { 345 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 346 "aborting.\n", status); 347 return -EINVAL; 348 } 349 350 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 351 (unsigned long long) icm_size >> 10, 352 (unsigned long long) aux_pages << 2); 353 354 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 355 GFP_HIGHUSER | __GFP_NOWARN); 356 if (!mdev->fw.arbel.aux_icm) { 357 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 358 return -ENOMEM; 359 } 360 361 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 362 if (err) { 363 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 364 goto err_free_aux; 365 } 366 if (status) { 367 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 368 err = -EINVAL; 369 goto err_free_aux; 370 } 371 372 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 373 if (err) { 374 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 375 goto err_unmap_aux; 376 } 377 378 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 379 MTHCA_MTT_SEG_SIZE, 380 mdev->limits.num_mtt_segs, 381 mdev->limits.reserved_mtts, 1); 382 if (!mdev->mr_table.mtt_table) { 383 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 384 err = -ENOMEM; 385 goto err_unmap_eq; 386 } 387 388 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 389 dev_lim->mpt_entry_sz, 390 mdev->limits.num_mpts, 391 mdev->limits.reserved_mrws, 1); 392 if (!mdev->mr_table.mpt_table) { 393 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 394 err = -ENOMEM; 395 goto err_unmap_mtt; 396 } 397 398 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 399 dev_lim->qpc_entry_sz, 400 mdev->limits.num_qps, 401 mdev->limits.reserved_qps, 0); 402 if (!mdev->qp_table.qp_table) { 403 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 404 err = -ENOMEM; 405 goto err_unmap_mpt; 406 } 407 408 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 409 dev_lim->eqpc_entry_sz, 410 mdev->limits.num_qps, 411 mdev->limits.reserved_qps, 0); 412 if (!mdev->qp_table.eqp_table) { 413 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 414 err = -ENOMEM; 415 goto err_unmap_qp; 416 } 417 418 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 419 MTHCA_RDB_ENTRY_SIZE, 420 mdev->limits.num_qps << 421 mdev->qp_table.rdb_shift, 422 0, 0); 423 if (!mdev->qp_table.rdb_table) { 424 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 425 err = -ENOMEM; 426 goto err_unmap_eqp; 427 } 428 429 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 430 dev_lim->cqc_entry_sz, 431 mdev->limits.num_cqs, 432 mdev->limits.reserved_cqs, 0); 433 if (!mdev->cq_table.table) { 434 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 435 err = -ENOMEM; 436 goto err_unmap_rdb; 437 } 438 439 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) { 440 mdev->srq_table.table = 441 mthca_alloc_icm_table(mdev, init_hca->srqc_base, 442 dev_lim->srq_entry_sz, 443 mdev->limits.num_srqs, 444 mdev->limits.reserved_srqs, 0); 445 if (!mdev->srq_table.table) { 446 mthca_err(mdev, "Failed to map SRQ context memory, " 447 "aborting.\n"); 448 err = -ENOMEM; 449 goto err_unmap_cq; 450 } 451 } 452 453 /* 454 * It's not strictly required, but for simplicity just map the 455 * whole multicast group table now. The table isn't very big 456 * and it's a lot easier than trying to track ref counts. 457 */ 458 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 459 MTHCA_MGM_ENTRY_SIZE, 460 mdev->limits.num_mgms + 461 mdev->limits.num_amgms, 462 mdev->limits.num_mgms + 463 mdev->limits.num_amgms, 464 0); 465 if (!mdev->mcg_table.table) { 466 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 467 err = -ENOMEM; 468 goto err_unmap_srq; 469 } 470 471 return 0; 472 473err_unmap_srq: 474 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 475 mthca_free_icm_table(mdev, mdev->srq_table.table); 476 477err_unmap_cq: 478 mthca_free_icm_table(mdev, mdev->cq_table.table); 479 480err_unmap_rdb: 481 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 482 483err_unmap_eqp: 484 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 485 486err_unmap_qp: 487 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 488 489err_unmap_mpt: 490 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 491 492err_unmap_mtt: 493 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 494 495err_unmap_eq: 496 mthca_unmap_eq_icm(mdev); 497 498err_unmap_aux: 499 mthca_UNMAP_ICM_AUX(mdev, &status); 500 501err_free_aux: 502 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 503 504 return err; 505} 506 507static void mthca_free_icms(struct mthca_dev *mdev) 508{ 509 u8 status; 510 511 mthca_free_icm_table(mdev, mdev->mcg_table.table); 512 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 513 mthca_free_icm_table(mdev, mdev->srq_table.table); 514 mthca_free_icm_table(mdev, mdev->cq_table.table); 515 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 516 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 517 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 518 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 519 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 520 mthca_unmap_eq_icm(mdev); 521 522 mthca_UNMAP_ICM_AUX(mdev, &status); 523 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 524} 525 526static int __devinit mthca_init_arbel(struct mthca_dev *mdev) 527{ 528 struct mthca_dev_lim dev_lim; 529 struct mthca_profile profile; 530 struct mthca_init_hca_param init_hca; 531 u64 icm_size; 532 u8 status; 533 int err; 534 535 err = mthca_QUERY_FW(mdev, &status); 536 if (err) { 537 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 538 return err; 539 } 540 if (status) { 541 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 542 "aborting.\n", status); 543 return -EINVAL; 544 } 545 546 err = mthca_ENABLE_LAM(mdev, &status); 547 if (err) { 548 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 549 return err; 550 } 551 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 552 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 553 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 554 } else if (status) { 555 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 556 "aborting.\n", status); 557 return -EINVAL; 558 } 559 560 err = mthca_load_fw(mdev); 561 if (err) { 562 mthca_err(mdev, "Failed to start FW, aborting.\n"); 563 goto err_disable; 564 } 565 566 err = mthca_dev_lim(mdev, &dev_lim); 567 if (err) { 568 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 569 goto err_stop_fw; 570 } 571 572 profile = default_profile; 573 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 574 profile.num_udav = 0; 575 if (mdev->mthca_flags & MTHCA_FLAG_SRQ) 576 profile.num_srq = dev_lim.max_srqs; 577 578 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 579 if ((int) icm_size < 0) { 580 err = icm_size; 581 goto err_stop_fw; 582 } 583 584 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 585 if (err) 586 goto err_stop_fw; 587 588 err = mthca_INIT_HCA(mdev, &init_hca, &status); 589 if (err) { 590 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 591 goto err_free_icm; 592 } 593 if (status) { 594 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 595 "aborting.\n", status); 596 err = -EINVAL; 597 goto err_free_icm; 598 } 599 600 return 0; 601 602err_free_icm: 603 mthca_free_icms(mdev); 604 605err_stop_fw: 606 mthca_UNMAP_FA(mdev, &status); 607 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 608 609err_disable: 610 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 611 mthca_DISABLE_LAM(mdev, &status); 612 613 return err; 614} 615 616static void mthca_close_hca(struct mthca_dev *mdev) 617{ 618 u8 status; 619 620 mthca_CLOSE_HCA(mdev, 0, &status); 621 622 if (mthca_is_memfree(mdev)) { 623 mthca_free_icms(mdev); 624 625 mthca_UNMAP_FA(mdev, &status); 626 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 627 628 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 629 mthca_DISABLE_LAM(mdev, &status); 630 } else 631 mthca_SYS_DIS(mdev, &status); 632} 633 634static int __devinit mthca_init_hca(struct mthca_dev *mdev) 635{ 636 u8 status; 637 int err; 638 struct mthca_adapter adapter; 639 640 if (mthca_is_memfree(mdev)) 641 err = mthca_init_arbel(mdev); 642 else 643 err = mthca_init_tavor(mdev); 644 645 if (err) 646 return err; 647 648 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 649 if (err) { 650 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 651 goto err_close; 652 } 653 if (status) { 654 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 655 "aborting.\n", status); 656 err = -EINVAL; 657 goto err_close; 658 } 659 660 mdev->eq_table.inta_pin = adapter.inta_pin; 661 mdev->rev_id = adapter.revision_id; 662 memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id); 663 664 return 0; 665 666err_close: 667 mthca_close_hca(mdev); 668 return err; 669} 670 671static int __devinit mthca_setup_hca(struct mthca_dev *dev) 672{ 673 int err; 674 u8 status; 675 676 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 677 678 err = mthca_init_uar_table(dev); 679 if (err) { 680 mthca_err(dev, "Failed to initialize " 681 "user access region table, aborting.\n"); 682 return err; 683 } 684 685 err = mthca_uar_alloc(dev, &dev->driver_uar); 686 if (err) { 687 mthca_err(dev, "Failed to allocate driver access region, " 688 "aborting.\n"); 689 goto err_uar_table_free; 690 } 691 692 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 693 if (!dev->kar) { 694 mthca_err(dev, "Couldn't map kernel access region, " 695 "aborting.\n"); 696 err = -ENOMEM; 697 goto err_uar_free; 698 } 699 700 err = mthca_init_pd_table(dev); 701 if (err) { 702 mthca_err(dev, "Failed to initialize " 703 "protection domain table, aborting.\n"); 704 goto err_kar_unmap; 705 } 706 707 err = mthca_init_mr_table(dev); 708 if (err) { 709 mthca_err(dev, "Failed to initialize " 710 "memory region table, aborting.\n"); 711 goto err_pd_table_free; 712 } 713 714 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 715 if (err) { 716 mthca_err(dev, "Failed to create driver PD, " 717 "aborting.\n"); 718 goto err_mr_table_free; 719 } 720 721 err = mthca_init_eq_table(dev); 722 if (err) { 723 mthca_err(dev, "Failed to initialize " 724 "event queue table, aborting.\n"); 725 goto err_pd_free; 726 } 727 728 err = mthca_cmd_use_events(dev); 729 if (err) { 730 mthca_err(dev, "Failed to switch to event-driven " 731 "firmware commands, aborting.\n"); 732 goto err_eq_table_free; 733 } 734 735 err = mthca_NOP(dev, &status); 736 if (err || status) { 737 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", 738 dev->mthca_flags & MTHCA_FLAG_MSI_X ? 739 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : 740 dev->pdev->irq); 741 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) 742 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); 743 else 744 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 745 746 goto err_cmd_poll; 747 } 748 749 mthca_dbg(dev, "NOP command IRQ test passed\n"); 750 751 err = mthca_init_cq_table(dev); 752 if (err) { 753 mthca_err(dev, "Failed to initialize " 754 "completion queue table, aborting.\n"); 755 goto err_cmd_poll; 756 } 757 758 err = mthca_init_srq_table(dev); 759 if (err) { 760 mthca_err(dev, "Failed to initialize " 761 "shared receive queue table, aborting.\n"); 762 goto err_cq_table_free; 763 } 764 765 err = mthca_init_qp_table(dev); 766 if (err) { 767 mthca_err(dev, "Failed to initialize " 768 "queue pair table, aborting.\n"); 769 goto err_srq_table_free; 770 } 771 772 err = mthca_init_av_table(dev); 773 if (err) { 774 mthca_err(dev, "Failed to initialize " 775 "address vector table, aborting.\n"); 776 goto err_qp_table_free; 777 } 778 779 err = mthca_init_mcg_table(dev); 780 if (err) { 781 mthca_err(dev, "Failed to initialize " 782 "multicast group table, aborting.\n"); 783 goto err_av_table_free; 784 } 785 786 return 0; 787 788err_av_table_free: 789 mthca_cleanup_av_table(dev); 790 791err_qp_table_free: 792 mthca_cleanup_qp_table(dev); 793 794err_srq_table_free: 795 mthca_cleanup_srq_table(dev); 796 797err_cq_table_free: 798 mthca_cleanup_cq_table(dev); 799 800err_cmd_poll: 801 mthca_cmd_use_polling(dev); 802 803err_eq_table_free: 804 mthca_cleanup_eq_table(dev); 805 806err_pd_free: 807 mthca_pd_free(dev, &dev->driver_pd); 808 809err_mr_table_free: 810 mthca_cleanup_mr_table(dev); 811 812err_pd_table_free: 813 mthca_cleanup_pd_table(dev); 814 815err_kar_unmap: 816 iounmap(dev->kar); 817 818err_uar_free: 819 mthca_uar_free(dev, &dev->driver_uar); 820 821err_uar_table_free: 822 mthca_cleanup_uar_table(dev); 823 return err; 824} 825 826static int __devinit mthca_request_regions(struct pci_dev *pdev, 827 int ddr_hidden) 828{ 829 int err; 830 831 /* 832 * We can't just use pci_request_regions() because the MSI-X 833 * table is right in the middle of the first BAR. If we did 834 * pci_request_region and grab all of the first BAR, then 835 * setting up MSI-X would fail, since the PCI core wants to do 836 * request_mem_region on the MSI-X vector table. 837 * 838 * So just request what we need right now, and request any 839 * other regions we need when setting up EQs. 840 */ 841 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 842 MTHCA_HCR_SIZE, DRV_NAME)) 843 return -EBUSY; 844 845 err = pci_request_region(pdev, 2, DRV_NAME); 846 if (err) 847 goto err_bar2_failed; 848 849 if (!ddr_hidden) { 850 err = pci_request_region(pdev, 4, DRV_NAME); 851 if (err) 852 goto err_bar4_failed; 853 } 854 855 return 0; 856 857err_bar4_failed: 858 pci_release_region(pdev, 2); 859 860err_bar2_failed: 861 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 862 MTHCA_HCR_SIZE); 863 864 return err; 865} 866 867static void mthca_release_regions(struct pci_dev *pdev, 868 int ddr_hidden) 869{ 870 if (!ddr_hidden) 871 pci_release_region(pdev, 4); 872 873 pci_release_region(pdev, 2); 874 875 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 876 MTHCA_HCR_SIZE); 877} 878 879static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) 880{ 881 struct msix_entry entries[3]; 882 int err; 883 884 entries[0].entry = 0; 885 entries[1].entry = 1; 886 entries[2].entry = 2; 887 888 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 889 if (err) { 890 if (err > 0) 891 mthca_info(mdev, "Only %d MSI-X vectors available, " 892 "not using MSI-X\n", err); 893 return err; 894 } 895 896 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 897 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 898 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 899 900 return 0; 901} 902 903/* Types of supported HCA */ 904enum { 905 TAVOR, /* MT23108 */ 906 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 907 ARBEL_NATIVE, /* MT25208 with extended features */ 908 SINAI /* MT25204 */ 909}; 910 911#define MTHCA_FW_VER(major, minor, subminor) \ 912 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 913 914static struct { 915 u64 latest_fw; 916 int is_memfree; 917 int is_pcie; 918} mthca_hca_table[] = { 919 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 3), .is_memfree = 0, .is_pcie = 0 }, 920 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 0), .is_memfree = 0, .is_pcie = 1 }, 921 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0), .is_memfree = 1, .is_pcie = 1 }, 922 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 } 923}; 924 925static int __devinit mthca_init_one(struct pci_dev *pdev, 926 const struct pci_device_id *id) 927{ 928 static int mthca_version_printed = 0; 929 int ddr_hidden = 0; 930 int err; 931 struct mthca_dev *mdev; 932 933 if (!mthca_version_printed) { 934 printk(KERN_INFO "%s", mthca_version); 935 ++mthca_version_printed; 936 } 937 938 printk(KERN_INFO PFX "Initializing %s\n", 939 pci_name(pdev)); 940 941 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 942 printk(KERN_ERR PFX "%s has invalid driver data %lx\n", 943 pci_name(pdev), id->driver_data); 944 return -ENODEV; 945 } 946 947 err = pci_enable_device(pdev); 948 if (err) { 949 dev_err(&pdev->dev, "Cannot enable PCI device, " 950 "aborting.\n"); 951 return err; 952 } 953 954 /* 955 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 956 * be present) 957 */ 958 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 959 pci_resource_len(pdev, 0) != 1 << 20) { 960 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 961 err = -ENODEV; 962 goto err_disable_pdev; 963 } 964 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) || 965 pci_resource_len(pdev, 2) != 1 << 23) { 966 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 967 err = -ENODEV; 968 goto err_disable_pdev; 969 } 970 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 971 ddr_hidden = 1; 972 973 err = mthca_request_regions(pdev, ddr_hidden); 974 if (err) { 975 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 976 "aborting.\n"); 977 goto err_disable_pdev; 978 } 979 980 pci_set_master(pdev); 981 982 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); 983 if (err) { 984 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 985 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 986 if (err) { 987 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 988 goto err_free_res; 989 } 990 } 991 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 992 if (err) { 993 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 994 "consistent PCI DMA mask.\n"); 995 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 996 if (err) { 997 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 998 "aborting.\n"); 999 goto err_free_res; 1000 } 1001 } 1002 1003 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 1004 if (!mdev) { 1005 dev_err(&pdev->dev, "Device struct alloc failed, " 1006 "aborting.\n"); 1007 err = -ENOMEM; 1008 goto err_free_res; 1009 } 1010 1011 mdev->pdev = pdev; 1012 1013 if (ddr_hidden) 1014 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 1015 if (mthca_hca_table[id->driver_data].is_memfree) 1016 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE; 1017 if (mthca_hca_table[id->driver_data].is_pcie) 1018 mdev->mthca_flags |= MTHCA_FLAG_PCIE; 1019 1020 /* 1021 * Now reset the HCA before we touch the PCI capabilities or 1022 * attempt a firmware command, since a boot ROM may have left 1023 * the HCA in an undefined state. 1024 */ 1025 err = mthca_reset(mdev); 1026 if (err) { 1027 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 1028 goto err_free_dev; 1029 } 1030 1031 if (msi_x && !mthca_enable_msi_x(mdev)) 1032 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1033 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && 1034 !pci_enable_msi(pdev)) 1035 mdev->mthca_flags |= MTHCA_FLAG_MSI; 1036 1037 if (mthca_cmd_init(mdev)) { 1038 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1039 goto err_free_dev; 1040 } 1041 1042 err = mthca_tune_pci(mdev); 1043 if (err) 1044 goto err_cmd; 1045 1046 err = mthca_init_hca(mdev); 1047 if (err) 1048 goto err_cmd; 1049 1050 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { 1051 mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n", 1052 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1053 (int) (mdev->fw_ver & 0xffff), 1054 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), 1055 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, 1056 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); 1057 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1058 } 1059 1060 err = mthca_setup_hca(mdev); 1061 if (err) 1062 goto err_close; 1063 1064 err = mthca_register_device(mdev); 1065 if (err) 1066 goto err_cleanup; 1067 1068 err = mthca_create_agents(mdev); 1069 if (err) 1070 goto err_unregister; 1071 1072 pci_set_drvdata(pdev, mdev); 1073 1074 return 0; 1075 1076err_unregister: 1077 mthca_unregister_device(mdev); 1078 1079err_cleanup: 1080 mthca_cleanup_mcg_table(mdev); 1081 mthca_cleanup_av_table(mdev); 1082 mthca_cleanup_qp_table(mdev); 1083 mthca_cleanup_srq_table(mdev); 1084 mthca_cleanup_cq_table(mdev); 1085 mthca_cmd_use_polling(mdev); 1086 mthca_cleanup_eq_table(mdev); 1087 1088 mthca_pd_free(mdev, &mdev->driver_pd); 1089 1090 mthca_cleanup_mr_table(mdev); 1091 mthca_cleanup_pd_table(mdev); 1092 mthca_cleanup_uar_table(mdev); 1093 1094err_close: 1095 mthca_close_hca(mdev); 1096 1097err_cmd: 1098 mthca_cmd_cleanup(mdev); 1099 1100err_free_dev: 1101 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1102 pci_disable_msix(pdev); 1103 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1104 pci_disable_msi(pdev); 1105 1106 ib_dealloc_device(&mdev->ib_dev); 1107 1108err_free_res: 1109 mthca_release_regions(pdev, ddr_hidden); 1110 1111err_disable_pdev: 1112 pci_disable_device(pdev); 1113 pci_set_drvdata(pdev, NULL); 1114 return err; 1115} 1116 1117static void __devexit mthca_remove_one(struct pci_dev *pdev) 1118{ 1119 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1120 u8 status; 1121 int p; 1122 1123 if (mdev) { 1124 mthca_free_agents(mdev); 1125 mthca_unregister_device(mdev); 1126 1127 for (p = 1; p <= mdev->limits.num_ports; ++p) 1128 mthca_CLOSE_IB(mdev, p, &status); 1129 1130 mthca_cleanup_mcg_table(mdev); 1131 mthca_cleanup_av_table(mdev); 1132 mthca_cleanup_qp_table(mdev); 1133 mthca_cleanup_srq_table(mdev); 1134 mthca_cleanup_cq_table(mdev); 1135 mthca_cmd_use_polling(mdev); 1136 mthca_cleanup_eq_table(mdev); 1137 1138 mthca_pd_free(mdev, &mdev->driver_pd); 1139 1140 mthca_cleanup_mr_table(mdev); 1141 mthca_cleanup_pd_table(mdev); 1142 1143 iounmap(mdev->kar); 1144 mthca_uar_free(mdev, &mdev->driver_uar); 1145 mthca_cleanup_uar_table(mdev); 1146 mthca_close_hca(mdev); 1147 mthca_cmd_cleanup(mdev); 1148 1149 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1150 pci_disable_msix(pdev); 1151 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1152 pci_disable_msi(pdev); 1153 1154 ib_dealloc_device(&mdev->ib_dev); 1155 mthca_release_regions(pdev, mdev->mthca_flags & 1156 MTHCA_FLAG_DDR_HIDDEN); 1157 pci_disable_device(pdev); 1158 pci_set_drvdata(pdev, NULL); 1159 } 1160} 1161 1162static struct pci_device_id mthca_pci_table[] = { 1163 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1164 .driver_data = TAVOR }, 1165 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1166 .driver_data = TAVOR }, 1167 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1168 .driver_data = ARBEL_COMPAT }, 1169 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1170 .driver_data = ARBEL_COMPAT }, 1171 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1172 .driver_data = ARBEL_NATIVE }, 1173 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1174 .driver_data = ARBEL_NATIVE }, 1175 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1176 .driver_data = SINAI }, 1177 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1178 .driver_data = SINAI }, 1179 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1180 .driver_data = SINAI }, 1181 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1182 .driver_data = SINAI }, 1183 { 0, } 1184}; 1185 1186MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1187 1188static struct pci_driver mthca_driver = { 1189 .name = DRV_NAME, 1190 .id_table = mthca_pci_table, 1191 .probe = mthca_init_one, 1192 .remove = __devexit_p(mthca_remove_one) 1193}; 1194 1195static int __init mthca_init(void) 1196{ 1197 int ret; 1198 1199 ret = pci_register_driver(&mthca_driver); 1200 return ret < 0 ? ret : 0; 1201} 1202 1203static void __exit mthca_cleanup(void) 1204{ 1205 pci_unregister_driver(&mthca_driver); 1206} 1207 1208module_init(mthca_init); 1209module_exit(mthca_cleanup); 1210