1 /* 2 * Marvell 88SE64xx/88SE94xx pci init 3 * 4 * Copyright 2007 Red Hat, Inc. 5 * Copyright 2008 Marvell. <kewei@marvell.com> 6 * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com> 7 * 8 * This file is licensed under GPLv2. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; version 2 of the 13 * License. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 23 * USA 24 */ 25 26 27 #include "mv_sas.h" 28 29 int interrupt_coalescing = 0x80; 30 31 static struct scsi_transport_template *mvs_stt; 32 static const struct mvs_chip_info mvs_chips[] = { 33 [chip_6320] = { 1, 2, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, }, 34 [chip_6440] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, }, 35 [chip_6485] = { 1, 8, 0x800, 33, 32, 6, 10, &mvs_64xx_dispatch, }, 36 [chip_9180] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, }, 37 [chip_9480] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, }, 38 [chip_9445] = { 1, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, }, 39 [chip_9485] = { 2, 4, 0x800, 17, 64, 8, 11, &mvs_94xx_dispatch, }, 40 [chip_1300] = { 1, 4, 0x400, 17, 16, 6, 9, &mvs_64xx_dispatch, }, 41 [chip_1320] = { 2, 4, 0x800, 17, 64, 8, 9, &mvs_94xx_dispatch, }, 42 }; 43 44 struct device_attribute *mvst_host_attrs[]; 45 46 #define SOC_SAS_NUM 2 47 48 static struct scsi_host_template mvs_sht = { 49 .module = THIS_MODULE, 50 .name = DRV_NAME, 51 .queuecommand = sas_queuecommand, 52 .target_alloc = sas_target_alloc, 53 .slave_configure = sas_slave_configure, 54 .scan_finished = mvs_scan_finished, 55 .scan_start = mvs_scan_start, 56 .change_queue_depth = sas_change_queue_depth, 57 .bios_param = sas_bios_param, 58 .can_queue = 1, 59 .this_id = -1, 60 .sg_tablesize = SG_ALL, 61 .max_sectors = SCSI_DEFAULT_MAX_SECTORS, 62 .use_clustering = ENABLE_CLUSTERING, 63 .eh_device_reset_handler = sas_eh_device_reset_handler, 64 .eh_bus_reset_handler = sas_eh_bus_reset_handler, 65 .target_destroy = sas_target_destroy, 66 .ioctl = sas_ioctl, 67 .shost_attrs = mvst_host_attrs, 68 .track_queue_depth = 1, 69 }; 70 71 static struct sas_domain_function_template mvs_transport_ops = { 72 .lldd_dev_found = mvs_dev_found, 73 .lldd_dev_gone = mvs_dev_gone, 74 .lldd_execute_task = mvs_queue_command, 75 .lldd_control_phy = mvs_phy_control, 76 77 .lldd_abort_task = mvs_abort_task, 78 .lldd_abort_task_set = mvs_abort_task_set, 79 .lldd_clear_aca = mvs_clear_aca, 80 .lldd_clear_task_set = mvs_clear_task_set, 81 .lldd_I_T_nexus_reset = mvs_I_T_nexus_reset, 82 .lldd_lu_reset = mvs_lu_reset, 83 .lldd_query_task = mvs_query_task, 84 .lldd_port_formed = mvs_port_formed, 85 .lldd_port_deformed = mvs_port_deformed, 86 87 }; 88 89 static void mvs_phy_init(struct mvs_info *mvi, int phy_id) 90 { 91 struct mvs_phy *phy = &mvi->phy[phy_id]; 92 struct asd_sas_phy *sas_phy = &phy->sas_phy; 93 94 phy->mvi = mvi; 95 phy->port = NULL; 96 init_timer(&phy->timer); 97 sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0; 98 sas_phy->class = SAS; 99 sas_phy->iproto = SAS_PROTOCOL_ALL; 100 sas_phy->tproto = 0; 101 sas_phy->type = PHY_TYPE_PHYSICAL; 102 sas_phy->role = PHY_ROLE_INITIATOR; 103 sas_phy->oob_mode = OOB_NOT_CONNECTED; 104 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; 105 106 sas_phy->id = phy_id; 107 sas_phy->sas_addr = &mvi->sas_addr[0]; 108 sas_phy->frame_rcvd = &phy->frame_rcvd[0]; 109 sas_phy->ha = (struct sas_ha_struct *)mvi->shost->hostdata; 110 sas_phy->lldd_phy = phy; 111 } 112 113 static void mvs_free(struct mvs_info *mvi) 114 { 115 struct mvs_wq *mwq; 116 int slot_nr; 117 118 if (!mvi) 119 return; 120 121 if (mvi->flags & MVF_FLAG_SOC) 122 slot_nr = MVS_SOC_SLOTS; 123 else 124 slot_nr = MVS_CHIP_SLOT_SZ; 125 126 if (mvi->dma_pool) 127 pci_pool_destroy(mvi->dma_pool); 128 129 if (mvi->tx) 130 dma_free_coherent(mvi->dev, 131 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ, 132 mvi->tx, mvi->tx_dma); 133 if (mvi->rx_fis) 134 dma_free_coherent(mvi->dev, MVS_RX_FISL_SZ, 135 mvi->rx_fis, mvi->rx_fis_dma); 136 if (mvi->rx) 137 dma_free_coherent(mvi->dev, 138 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1), 139 mvi->rx, mvi->rx_dma); 140 if (mvi->slot) 141 dma_free_coherent(mvi->dev, 142 sizeof(*mvi->slot) * slot_nr, 143 mvi->slot, mvi->slot_dma); 144 145 if (mvi->bulk_buffer) 146 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE, 147 mvi->bulk_buffer, mvi->bulk_buffer_dma); 148 if (mvi->bulk_buffer1) 149 dma_free_coherent(mvi->dev, TRASH_BUCKET_SIZE, 150 mvi->bulk_buffer1, mvi->bulk_buffer_dma1); 151 152 MVS_CHIP_DISP->chip_iounmap(mvi); 153 if (mvi->shost) 154 scsi_host_put(mvi->shost); 155 list_for_each_entry(mwq, &mvi->wq_list, entry) 156 cancel_delayed_work(&mwq->work_q); 157 kfree(mvi->tags); 158 kfree(mvi); 159 } 160 161 #ifdef CONFIG_SCSI_MVSAS_TASKLET 162 static void mvs_tasklet(unsigned long opaque) 163 { 164 u32 stat; 165 u16 core_nr, i = 0; 166 167 struct mvs_info *mvi; 168 struct sas_ha_struct *sha = (struct sas_ha_struct *)opaque; 169 170 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 171 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0]; 172 173 if (unlikely(!mvi)) 174 BUG_ON(1); 175 176 stat = MVS_CHIP_DISP->isr_status(mvi, mvi->pdev->irq); 177 if (!stat) 178 goto out; 179 180 for (i = 0; i < core_nr; i++) { 181 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i]; 182 MVS_CHIP_DISP->isr(mvi, mvi->pdev->irq, stat); 183 } 184 out: 185 MVS_CHIP_DISP->interrupt_enable(mvi); 186 187 } 188 #endif 189 190 static irqreturn_t mvs_interrupt(int irq, void *opaque) 191 { 192 u32 core_nr; 193 u32 stat; 194 struct mvs_info *mvi; 195 struct sas_ha_struct *sha = opaque; 196 #ifndef CONFIG_SCSI_MVSAS_TASKLET 197 u32 i; 198 #endif 199 200 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 201 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0]; 202 203 if (unlikely(!mvi)) 204 return IRQ_NONE; 205 #ifdef CONFIG_SCSI_MVSAS_TASKLET 206 MVS_CHIP_DISP->interrupt_disable(mvi); 207 #endif 208 209 stat = MVS_CHIP_DISP->isr_status(mvi, irq); 210 if (!stat) { 211 #ifdef CONFIG_SCSI_MVSAS_TASKLET 212 MVS_CHIP_DISP->interrupt_enable(mvi); 213 #endif 214 return IRQ_NONE; 215 } 216 217 #ifdef CONFIG_SCSI_MVSAS_TASKLET 218 tasklet_schedule(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet); 219 #else 220 for (i = 0; i < core_nr; i++) { 221 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i]; 222 MVS_CHIP_DISP->isr(mvi, irq, stat); 223 } 224 #endif 225 return IRQ_HANDLED; 226 } 227 228 static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost) 229 { 230 int i = 0, slot_nr; 231 char pool_name[32]; 232 233 if (mvi->flags & MVF_FLAG_SOC) 234 slot_nr = MVS_SOC_SLOTS; 235 else 236 slot_nr = MVS_CHIP_SLOT_SZ; 237 238 spin_lock_init(&mvi->lock); 239 for (i = 0; i < mvi->chip->n_phy; i++) { 240 mvs_phy_init(mvi, i); 241 mvi->port[i].wide_port_phymap = 0; 242 mvi->port[i].port_attached = 0; 243 INIT_LIST_HEAD(&mvi->port[i].list); 244 } 245 for (i = 0; i < MVS_MAX_DEVICES; i++) { 246 mvi->devices[i].taskfileset = MVS_ID_NOT_MAPPED; 247 mvi->devices[i].dev_type = SAS_PHY_UNUSED; 248 mvi->devices[i].device_id = i; 249 mvi->devices[i].dev_status = MVS_DEV_NORMAL; 250 init_timer(&mvi->devices[i].timer); 251 } 252 253 /* 254 * alloc and init our DMA areas 255 */ 256 mvi->tx = dma_alloc_coherent(mvi->dev, 257 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ, 258 &mvi->tx_dma, GFP_KERNEL); 259 if (!mvi->tx) 260 goto err_out; 261 memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ); 262 mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ, 263 &mvi->rx_fis_dma, GFP_KERNEL); 264 if (!mvi->rx_fis) 265 goto err_out; 266 memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ); 267 268 mvi->rx = dma_alloc_coherent(mvi->dev, 269 sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1), 270 &mvi->rx_dma, GFP_KERNEL); 271 if (!mvi->rx) 272 goto err_out; 273 memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1)); 274 mvi->rx[0] = cpu_to_le32(0xfff); 275 mvi->rx_cons = 0xfff; 276 277 mvi->slot = dma_alloc_coherent(mvi->dev, 278 sizeof(*mvi->slot) * slot_nr, 279 &mvi->slot_dma, GFP_KERNEL); 280 if (!mvi->slot) 281 goto err_out; 282 memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr); 283 284 mvi->bulk_buffer = dma_alloc_coherent(mvi->dev, 285 TRASH_BUCKET_SIZE, 286 &mvi->bulk_buffer_dma, GFP_KERNEL); 287 if (!mvi->bulk_buffer) 288 goto err_out; 289 290 mvi->bulk_buffer1 = dma_alloc_coherent(mvi->dev, 291 TRASH_BUCKET_SIZE, 292 &mvi->bulk_buffer_dma1, GFP_KERNEL); 293 if (!mvi->bulk_buffer1) 294 goto err_out; 295 296 sprintf(pool_name, "%s%d", "mvs_dma_pool", mvi->id); 297 mvi->dma_pool = pci_pool_create(pool_name, mvi->pdev, MVS_SLOT_BUF_SZ, 16, 0); 298 if (!mvi->dma_pool) { 299 printk(KERN_DEBUG "failed to create dma pool %s.\n", pool_name); 300 goto err_out; 301 } 302 mvi->tags_num = slot_nr; 303 304 /* Initialize tags */ 305 mvs_tag_init(mvi); 306 return 0; 307 err_out: 308 return 1; 309 } 310 311 312 int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex) 313 { 314 unsigned long res_start, res_len, res_flag, res_flag_ex = 0; 315 struct pci_dev *pdev = mvi->pdev; 316 if (bar_ex != -1) { 317 /* 318 * ioremap main and peripheral registers 319 */ 320 res_start = pci_resource_start(pdev, bar_ex); 321 res_len = pci_resource_len(pdev, bar_ex); 322 if (!res_start || !res_len) 323 goto err_out; 324 325 res_flag_ex = pci_resource_flags(pdev, bar_ex); 326 if (res_flag_ex & IORESOURCE_MEM) 327 mvi->regs_ex = ioremap(res_start, res_len); 328 else 329 mvi->regs_ex = (void *)res_start; 330 if (!mvi->regs_ex) 331 goto err_out; 332 } 333 334 res_start = pci_resource_start(pdev, bar); 335 res_len = pci_resource_len(pdev, bar); 336 if (!res_start || !res_len) { 337 iounmap(mvi->regs_ex); 338 mvi->regs_ex = NULL; 339 goto err_out; 340 } 341 342 res_flag = pci_resource_flags(pdev, bar); 343 mvi->regs = ioremap(res_start, res_len); 344 345 if (!mvi->regs) { 346 if (mvi->regs_ex && (res_flag_ex & IORESOURCE_MEM)) 347 iounmap(mvi->regs_ex); 348 mvi->regs_ex = NULL; 349 goto err_out; 350 } 351 352 return 0; 353 err_out: 354 return -1; 355 } 356 357 void mvs_iounmap(void __iomem *regs) 358 { 359 iounmap(regs); 360 } 361 362 static struct mvs_info *mvs_pci_alloc(struct pci_dev *pdev, 363 const struct pci_device_id *ent, 364 struct Scsi_Host *shost, unsigned int id) 365 { 366 struct mvs_info *mvi = NULL; 367 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 368 369 mvi = kzalloc(sizeof(*mvi) + 370 (1L << mvs_chips[ent->driver_data].slot_width) * 371 sizeof(struct mvs_slot_info), GFP_KERNEL); 372 if (!mvi) 373 return NULL; 374 375 mvi->pdev = pdev; 376 mvi->dev = &pdev->dev; 377 mvi->chip_id = ent->driver_data; 378 mvi->chip = &mvs_chips[mvi->chip_id]; 379 INIT_LIST_HEAD(&mvi->wq_list); 380 381 ((struct mvs_prv_info *)sha->lldd_ha)->mvi[id] = mvi; 382 ((struct mvs_prv_info *)sha->lldd_ha)->n_phy = mvi->chip->n_phy; 383 384 mvi->id = id; 385 mvi->sas = sha; 386 mvi->shost = shost; 387 388 mvi->tags = kzalloc(MVS_CHIP_SLOT_SZ>>3, GFP_KERNEL); 389 if (!mvi->tags) 390 goto err_out; 391 392 if (MVS_CHIP_DISP->chip_ioremap(mvi)) 393 goto err_out; 394 if (!mvs_alloc(mvi, shost)) 395 return mvi; 396 err_out: 397 mvs_free(mvi); 398 return NULL; 399 } 400 401 static int pci_go_64(struct pci_dev *pdev) 402 { 403 int rc; 404 405 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { 406 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); 407 if (rc) { 408 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 409 if (rc) { 410 dev_printk(KERN_ERR, &pdev->dev, 411 "64-bit DMA enable failed\n"); 412 return rc; 413 } 414 } 415 } else { 416 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 417 if (rc) { 418 dev_printk(KERN_ERR, &pdev->dev, 419 "32-bit DMA enable failed\n"); 420 return rc; 421 } 422 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 423 if (rc) { 424 dev_printk(KERN_ERR, &pdev->dev, 425 "32-bit consistent DMA enable failed\n"); 426 return rc; 427 } 428 } 429 430 return rc; 431 } 432 433 static int mvs_prep_sas_ha_init(struct Scsi_Host *shost, 434 const struct mvs_chip_info *chip_info) 435 { 436 int phy_nr, port_nr; unsigned short core_nr; 437 struct asd_sas_phy **arr_phy; 438 struct asd_sas_port **arr_port; 439 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 440 441 core_nr = chip_info->n_host; 442 phy_nr = core_nr * chip_info->n_phy; 443 port_nr = phy_nr; 444 445 memset(sha, 0x00, sizeof(struct sas_ha_struct)); 446 arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL); 447 arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL); 448 if (!arr_phy || !arr_port) 449 goto exit_free; 450 451 sha->sas_phy = arr_phy; 452 sha->sas_port = arr_port; 453 sha->core.shost = shost; 454 455 sha->lldd_ha = kzalloc(sizeof(struct mvs_prv_info), GFP_KERNEL); 456 if (!sha->lldd_ha) 457 goto exit_free; 458 459 ((struct mvs_prv_info *)sha->lldd_ha)->n_host = core_nr; 460 461 shost->transportt = mvs_stt; 462 shost->max_id = MVS_MAX_DEVICES; 463 shost->max_lun = ~0; 464 shost->max_channel = 1; 465 shost->max_cmd_len = 16; 466 467 return 0; 468 exit_free: 469 kfree(arr_phy); 470 kfree(arr_port); 471 return -1; 472 473 } 474 475 static void mvs_post_sas_ha_init(struct Scsi_Host *shost, 476 const struct mvs_chip_info *chip_info) 477 { 478 int can_queue, i = 0, j = 0; 479 struct mvs_info *mvi = NULL; 480 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 481 unsigned short nr_core = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 482 483 for (j = 0; j < nr_core; j++) { 484 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j]; 485 for (i = 0; i < chip_info->n_phy; i++) { 486 sha->sas_phy[j * chip_info->n_phy + i] = 487 &mvi->phy[i].sas_phy; 488 sha->sas_port[j * chip_info->n_phy + i] = 489 &mvi->port[i].sas_port; 490 } 491 } 492 493 sha->sas_ha_name = DRV_NAME; 494 sha->dev = mvi->dev; 495 sha->lldd_module = THIS_MODULE; 496 sha->sas_addr = &mvi->sas_addr[0]; 497 498 sha->num_phys = nr_core * chip_info->n_phy; 499 500 if (mvi->flags & MVF_FLAG_SOC) 501 can_queue = MVS_SOC_CAN_QUEUE; 502 else 503 can_queue = MVS_CHIP_SLOT_SZ; 504 505 shost->sg_tablesize = min_t(u16, SG_ALL, MVS_MAX_SG); 506 shost->can_queue = can_queue; 507 mvi->shost->cmd_per_lun = MVS_QUEUE_SIZE; 508 sha->core.shost = mvi->shost; 509 } 510 511 static void mvs_init_sas_add(struct mvs_info *mvi) 512 { 513 u8 i; 514 for (i = 0; i < mvi->chip->n_phy; i++) { 515 mvi->phy[i].dev_sas_addr = 0x5005043011ab0000ULL; 516 mvi->phy[i].dev_sas_addr = 517 cpu_to_be64((u64)(*(u64 *)&mvi->phy[i].dev_sas_addr)); 518 } 519 520 memcpy(mvi->sas_addr, &mvi->phy[0].dev_sas_addr, SAS_ADDR_SIZE); 521 } 522 523 static int mvs_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent) 524 { 525 unsigned int rc, nhost = 0; 526 struct mvs_info *mvi; 527 struct mvs_prv_info *mpi; 528 irq_handler_t irq_handler = mvs_interrupt; 529 struct Scsi_Host *shost = NULL; 530 const struct mvs_chip_info *chip; 531 532 dev_printk(KERN_INFO, &pdev->dev, 533 "mvsas: driver version %s\n", DRV_VERSION); 534 rc = pci_enable_device(pdev); 535 if (rc) 536 goto err_out_enable; 537 538 pci_set_master(pdev); 539 540 rc = pci_request_regions(pdev, DRV_NAME); 541 if (rc) 542 goto err_out_disable; 543 544 rc = pci_go_64(pdev); 545 if (rc) 546 goto err_out_regions; 547 548 shost = scsi_host_alloc(&mvs_sht, sizeof(void *)); 549 if (!shost) { 550 rc = -ENOMEM; 551 goto err_out_regions; 552 } 553 554 chip = &mvs_chips[ent->driver_data]; 555 SHOST_TO_SAS_HA(shost) = 556 kcalloc(1, sizeof(struct sas_ha_struct), GFP_KERNEL); 557 if (!SHOST_TO_SAS_HA(shost)) { 558 kfree(shost); 559 rc = -ENOMEM; 560 goto err_out_regions; 561 } 562 563 rc = mvs_prep_sas_ha_init(shost, chip); 564 if (rc) { 565 kfree(shost); 566 rc = -ENOMEM; 567 goto err_out_regions; 568 } 569 570 pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost)); 571 572 do { 573 mvi = mvs_pci_alloc(pdev, ent, shost, nhost); 574 if (!mvi) { 575 rc = -ENOMEM; 576 goto err_out_regions; 577 } 578 579 memset(&mvi->hba_info_param, 0xFF, 580 sizeof(struct hba_info_page)); 581 582 mvs_init_sas_add(mvi); 583 584 mvi->instance = nhost; 585 rc = MVS_CHIP_DISP->chip_init(mvi); 586 if (rc) { 587 mvs_free(mvi); 588 goto err_out_regions; 589 } 590 nhost++; 591 } while (nhost < chip->n_host); 592 mpi = (struct mvs_prv_info *)(SHOST_TO_SAS_HA(shost)->lldd_ha); 593 #ifdef CONFIG_SCSI_MVSAS_TASKLET 594 tasklet_init(&(mpi->mv_tasklet), mvs_tasklet, 595 (unsigned long)SHOST_TO_SAS_HA(shost)); 596 #endif 597 598 mvs_post_sas_ha_init(shost, chip); 599 600 rc = scsi_add_host(shost, &pdev->dev); 601 if (rc) 602 goto err_out_shost; 603 604 rc = sas_register_ha(SHOST_TO_SAS_HA(shost)); 605 if (rc) 606 goto err_out_shost; 607 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, 608 DRV_NAME, SHOST_TO_SAS_HA(shost)); 609 if (rc) 610 goto err_not_sas; 611 612 MVS_CHIP_DISP->interrupt_enable(mvi); 613 614 scsi_scan_host(mvi->shost); 615 616 return 0; 617 618 err_not_sas: 619 sas_unregister_ha(SHOST_TO_SAS_HA(shost)); 620 err_out_shost: 621 scsi_remove_host(mvi->shost); 622 err_out_regions: 623 pci_release_regions(pdev); 624 err_out_disable: 625 pci_disable_device(pdev); 626 err_out_enable: 627 return rc; 628 } 629 630 static void mvs_pci_remove(struct pci_dev *pdev) 631 { 632 unsigned short core_nr, i = 0; 633 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 634 struct mvs_info *mvi = NULL; 635 636 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 637 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0]; 638 639 #ifdef CONFIG_SCSI_MVSAS_TASKLET 640 tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet); 641 #endif 642 643 scsi_remove_host(mvi->shost); 644 sas_unregister_ha(sha); 645 sas_remove_host(mvi->shost); 646 647 MVS_CHIP_DISP->interrupt_disable(mvi); 648 free_irq(mvi->pdev->irq, sha); 649 for (i = 0; i < core_nr; i++) { 650 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i]; 651 mvs_free(mvi); 652 } 653 kfree(sha->sas_phy); 654 kfree(sha->sas_port); 655 kfree(sha); 656 pci_release_regions(pdev); 657 pci_disable_device(pdev); 658 return; 659 } 660 661 static struct pci_device_id mvs_pci_table[] = { 662 { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 }, 663 { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 }, 664 { 665 .vendor = PCI_VENDOR_ID_MARVELL, 666 .device = 0x6440, 667 .subvendor = PCI_ANY_ID, 668 .subdevice = 0x6480, 669 .class = 0, 670 .class_mask = 0, 671 .driver_data = chip_6485, 672 }, 673 { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 }, 674 { PCI_VDEVICE(MARVELL, 0x6485), chip_6485 }, 675 { PCI_VDEVICE(MARVELL, 0x9480), chip_9480 }, 676 { PCI_VDEVICE(MARVELL, 0x9180), chip_9180 }, 677 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1300), chip_1300 }, 678 { PCI_VDEVICE(ARECA, PCI_DEVICE_ID_ARECA_1320), chip_1320 }, 679 { PCI_VDEVICE(ADAPTEC2, 0x0450), chip_6440 }, 680 { PCI_VDEVICE(TTI, 0x2710), chip_9480 }, 681 { PCI_VDEVICE(TTI, 0x2720), chip_9480 }, 682 { PCI_VDEVICE(TTI, 0x2721), chip_9480 }, 683 { PCI_VDEVICE(TTI, 0x2722), chip_9480 }, 684 { PCI_VDEVICE(TTI, 0x2740), chip_9480 }, 685 { PCI_VDEVICE(TTI, 0x2744), chip_9480 }, 686 { PCI_VDEVICE(TTI, 0x2760), chip_9480 }, 687 { 688 .vendor = PCI_VENDOR_ID_MARVELL_EXT, 689 .device = 0x9480, 690 .subvendor = PCI_ANY_ID, 691 .subdevice = 0x9480, 692 .class = 0, 693 .class_mask = 0, 694 .driver_data = chip_9480, 695 }, 696 { 697 .vendor = PCI_VENDOR_ID_MARVELL_EXT, 698 .device = 0x9445, 699 .subvendor = PCI_ANY_ID, 700 .subdevice = 0x9480, 701 .class = 0, 702 .class_mask = 0, 703 .driver_data = chip_9445, 704 }, 705 { 706 .vendor = PCI_VENDOR_ID_MARVELL_EXT, 707 .device = 0x9485, 708 .subvendor = PCI_ANY_ID, 709 .subdevice = 0x9480, 710 .class = 0, 711 .class_mask = 0, 712 .driver_data = chip_9485, 713 }, 714 { 715 .vendor = PCI_VENDOR_ID_MARVELL_EXT, 716 .device = 0x9485, 717 .subvendor = PCI_ANY_ID, 718 .subdevice = 0x9485, 719 .class = 0, 720 .class_mask = 0, 721 .driver_data = chip_9485, 722 }, 723 { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */ 724 { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 725 { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 726 { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 727 { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 728 { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 729 { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 730 { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 731 { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 732 { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ 733 734 { } /* terminate list */ 735 }; 736 737 static struct pci_driver mvs_pci_driver = { 738 .name = DRV_NAME, 739 .id_table = mvs_pci_table, 740 .probe = mvs_pci_init, 741 .remove = mvs_pci_remove, 742 }; 743 744 static ssize_t 745 mvs_show_driver_version(struct device *cdev, 746 struct device_attribute *attr, char *buffer) 747 { 748 return snprintf(buffer, PAGE_SIZE, "%s\n", DRV_VERSION); 749 } 750 751 static DEVICE_ATTR(driver_version, 752 S_IRUGO, 753 mvs_show_driver_version, 754 NULL); 755 756 static ssize_t 757 mvs_store_interrupt_coalescing(struct device *cdev, 758 struct device_attribute *attr, 759 const char *buffer, size_t size) 760 { 761 unsigned int val = 0; 762 struct mvs_info *mvi = NULL; 763 struct Scsi_Host *shost = class_to_shost(cdev); 764 struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 765 u8 i, core_nr; 766 if (buffer == NULL) 767 return size; 768 769 if (sscanf(buffer, "%u", &val) != 1) 770 return -EINVAL; 771 772 if (val >= 0x10000) { 773 mv_dprintk("interrupt coalescing timer %d us is" 774 "too long\n", val); 775 return strlen(buffer); 776 } 777 778 interrupt_coalescing = val; 779 780 core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 781 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[0]; 782 783 if (unlikely(!mvi)) 784 return -EINVAL; 785 786 for (i = 0; i < core_nr; i++) { 787 mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[i]; 788 if (MVS_CHIP_DISP->tune_interrupt) 789 MVS_CHIP_DISP->tune_interrupt(mvi, 790 interrupt_coalescing); 791 } 792 mv_dprintk("set interrupt coalescing time to %d us\n", 793 interrupt_coalescing); 794 return strlen(buffer); 795 } 796 797 static ssize_t mvs_show_interrupt_coalescing(struct device *cdev, 798 struct device_attribute *attr, char *buffer) 799 { 800 return snprintf(buffer, PAGE_SIZE, "%d\n", interrupt_coalescing); 801 } 802 803 static DEVICE_ATTR(interrupt_coalescing, 804 S_IRUGO|S_IWUSR, 805 mvs_show_interrupt_coalescing, 806 mvs_store_interrupt_coalescing); 807 808 /* task handler */ 809 struct task_struct *mvs_th; 810 static int __init mvs_init(void) 811 { 812 int rc; 813 mvs_stt = sas_domain_attach_transport(&mvs_transport_ops); 814 if (!mvs_stt) 815 return -ENOMEM; 816 817 rc = pci_register_driver(&mvs_pci_driver); 818 if (rc) 819 goto err_out; 820 821 return 0; 822 823 err_out: 824 sas_release_transport(mvs_stt); 825 return rc; 826 } 827 828 static void __exit mvs_exit(void) 829 { 830 pci_unregister_driver(&mvs_pci_driver); 831 sas_release_transport(mvs_stt); 832 } 833 834 struct device_attribute *mvst_host_attrs[] = { 835 &dev_attr_driver_version, 836 &dev_attr_interrupt_coalescing, 837 NULL, 838 }; 839 840 module_init(mvs_init); 841 module_exit(mvs_exit); 842 843 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>"); 844 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver"); 845 MODULE_VERSION(DRV_VERSION); 846 MODULE_LICENSE("GPL"); 847 #ifdef CONFIG_PCI 848 MODULE_DEVICE_TABLE(pci, mvs_pci_table); 849 #endif 850