1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Aic94xx SAS/SATA driver initialization. 4 * 5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved. 6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> 7 */ 8 9 #include <linux/module.h> 10 #include <linux/init.h> 11 #include <linux/kernel.h> 12 #include <linux/pci.h> 13 #include <linux/delay.h> 14 #include <linux/firmware.h> 15 #include <linux/slab.h> 16 17 #include <scsi/sas_ata.h> 18 #include <scsi/scsi_host.h> 19 20 #include "aic94xx.h" 21 #include "aic94xx_reg.h" 22 #include "aic94xx_hwi.h" 23 #include "aic94xx_seq.h" 24 #include "aic94xx_sds.h" 25 26 /* The format is "version.release.patchlevel" */ 27 #define ASD_DRIVER_VERSION "1.0.3" 28 #define DRV_NAME "aic94xx" 29 30 static int use_msi = 0; 31 module_param_named(use_msi, use_msi, int, S_IRUGO); 32 MODULE_PARM_DESC(use_msi, "\n" 33 "\tEnable(1) or disable(0) using PCI MSI.\n" 34 "\tDefault: 0"); 35 36 static struct scsi_transport_template *aic94xx_transport_template; 37 static int asd_scan_finished(struct Scsi_Host *, unsigned long); 38 static void asd_scan_start(struct Scsi_Host *); 39 static const struct attribute_group *asd_sdev_groups[]; 40 41 static const struct scsi_host_template aic94xx_sht = { 42 LIBSAS_SHT_BASE 43 .scan_finished = asd_scan_finished, 44 .scan_start = asd_scan_start, 45 .can_queue = 1, 46 .sg_tablesize = SG_ALL, 47 .track_queue_depth = 1, 48 .sdev_groups = asd_sdev_groups, 49 }; 50 51 static int asd_map_memio(struct asd_ha_struct *asd_ha) 52 { 53 int err, i; 54 struct asd_ha_addrspace *io_handle; 55 56 asd_ha->iospace = 0; 57 for (i = 0; i < 3; i += 2) { 58 io_handle = &asd_ha->io_handle[i==0?0:1]; 59 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 60 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 61 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 62 err = -ENODEV; 63 if (!io_handle->start || !io_handle->len) { 64 asd_printk("MBAR%d start or length for %s is 0.\n", 65 i==0?0:1, pci_name(asd_ha->pcidev)); 66 goto Err; 67 } 68 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 69 if (err) { 70 asd_printk("couldn't reserve memory region for %s\n", 71 pci_name(asd_ha->pcidev)); 72 goto Err; 73 } 74 io_handle->addr = ioremap(io_handle->start, io_handle->len); 75 if (!io_handle->addr) { 76 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1, 77 pci_name(asd_ha->pcidev)); 78 err = -ENOMEM; 79 goto Err_unreq; 80 } 81 } 82 83 return 0; 84 Err_unreq: 85 pci_release_region(asd_ha->pcidev, i); 86 Err: 87 if (i > 0) { 88 io_handle = &asd_ha->io_handle[0]; 89 iounmap(io_handle->addr); 90 pci_release_region(asd_ha->pcidev, 0); 91 } 92 return err; 93 } 94 95 static void asd_unmap_memio(struct asd_ha_struct *asd_ha) 96 { 97 struct asd_ha_addrspace *io_handle; 98 99 io_handle = &asd_ha->io_handle[1]; 100 iounmap(io_handle->addr); 101 pci_release_region(asd_ha->pcidev, 2); 102 103 io_handle = &asd_ha->io_handle[0]; 104 iounmap(io_handle->addr); 105 pci_release_region(asd_ha->pcidev, 0); 106 } 107 108 static int asd_map_ioport(struct asd_ha_struct *asd_ha) 109 { 110 int i = PCI_IOBAR_OFFSET, err; 111 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0]; 112 113 asd_ha->iospace = 1; 114 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 115 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 116 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 117 io_handle->addr = (void __iomem *) io_handle->start; 118 if (!io_handle->start || !io_handle->len) { 119 asd_printk("couldn't get IO ports for %s\n", 120 pci_name(asd_ha->pcidev)); 121 return -ENODEV; 122 } 123 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 124 if (err) { 125 asd_printk("couldn't reserve io space for %s\n", 126 pci_name(asd_ha->pcidev)); 127 } 128 129 return err; 130 } 131 132 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha) 133 { 134 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET); 135 } 136 137 static int asd_map_ha(struct asd_ha_struct *asd_ha) 138 { 139 int err; 140 u16 cmd_reg; 141 142 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg); 143 if (err) { 144 asd_printk("couldn't read command register of %s\n", 145 pci_name(asd_ha->pcidev)); 146 goto Err; 147 } 148 149 err = -ENODEV; 150 if (cmd_reg & PCI_COMMAND_MEMORY) { 151 if ((err = asd_map_memio(asd_ha))) 152 goto Err; 153 } else if (cmd_reg & PCI_COMMAND_IO) { 154 if ((err = asd_map_ioport(asd_ha))) 155 goto Err; 156 asd_printk("%s ioport mapped -- upgrade your hardware\n", 157 pci_name(asd_ha->pcidev)); 158 } else { 159 asd_printk("no proper device access to %s\n", 160 pci_name(asd_ha->pcidev)); 161 goto Err; 162 } 163 164 return 0; 165 Err: 166 return err; 167 } 168 169 static void asd_unmap_ha(struct asd_ha_struct *asd_ha) 170 { 171 if (asd_ha->iospace) 172 asd_unmap_ioport(asd_ha); 173 else 174 asd_unmap_memio(asd_ha); 175 } 176 177 static const char *asd_dev_rev[30] = { 178 [0] = "A0", 179 [1] = "A1", 180 [8] = "B0", 181 }; 182 183 static int asd_common_setup(struct asd_ha_struct *asd_ha) 184 { 185 int err, i; 186 187 asd_ha->revision_id = asd_ha->pcidev->revision; 188 189 err = -ENODEV; 190 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) { 191 asd_printk("%s is revision %s (%X), which is not supported\n", 192 pci_name(asd_ha->pcidev), 193 asd_dev_rev[asd_ha->revision_id], 194 asd_ha->revision_id); 195 goto Err; 196 } 197 /* Provide some sane default values. */ 198 asd_ha->hw_prof.max_scbs = 512; 199 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS; 200 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS; 201 /* All phys are enabled, by default. */ 202 asd_ha->hw_prof.enabled_phys = 0xFF; 203 for (i = 0; i < ASD_MAX_PHYS; i++) { 204 asd_ha->hw_prof.phy_desc[i].max_sas_lrate = 205 SAS_LINK_RATE_3_0_GBPS; 206 asd_ha->hw_prof.phy_desc[i].min_sas_lrate = 207 SAS_LINK_RATE_1_5_GBPS; 208 asd_ha->hw_prof.phy_desc[i].max_sata_lrate = 209 SAS_LINK_RATE_1_5_GBPS; 210 asd_ha->hw_prof.phy_desc[i].min_sata_lrate = 211 SAS_LINK_RATE_1_5_GBPS; 212 } 213 214 return 0; 215 Err: 216 return err; 217 } 218 219 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha) 220 { 221 int err = asd_common_setup(asd_ha); 222 223 if (err) 224 return err; 225 226 asd_ha->hw_prof.addr_range = 8; 227 asd_ha->hw_prof.port_name_base = 0; 228 asd_ha->hw_prof.dev_name_base = 8; 229 asd_ha->hw_prof.sata_name_base = 16; 230 231 return 0; 232 } 233 234 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha) 235 { 236 int err = asd_common_setup(asd_ha); 237 238 if (err) 239 return err; 240 241 asd_ha->hw_prof.addr_range = 4; 242 asd_ha->hw_prof.port_name_base = 0; 243 asd_ha->hw_prof.dev_name_base = 4; 244 asd_ha->hw_prof.sata_name_base = 8; 245 246 return 0; 247 } 248 249 static ssize_t asd_show_dev_rev(struct device *dev, 250 struct device_attribute *attr, char *buf) 251 { 252 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 253 return snprintf(buf, PAGE_SIZE, "%s\n", 254 asd_dev_rev[asd_ha->revision_id]); 255 } 256 static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL); 257 258 static ssize_t asd_show_dev_bios_build(struct device *dev, 259 struct device_attribute *attr,char *buf) 260 { 261 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 262 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld); 263 } 264 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL); 265 266 static ssize_t asd_show_dev_pcba_sn(struct device *dev, 267 struct device_attribute *attr, char *buf) 268 { 269 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 270 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn); 271 } 272 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL); 273 274 #define FLASH_CMD_NONE 0x00 275 #define FLASH_CMD_UPDATE 0x01 276 #define FLASH_CMD_VERIFY 0x02 277 278 struct flash_command { 279 u8 command[8]; 280 int code; 281 }; 282 283 static struct flash_command flash_command_table[] = 284 { 285 {"verify", FLASH_CMD_VERIFY}, 286 {"update", FLASH_CMD_UPDATE}, 287 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 288 }; 289 290 struct error_bios { 291 char *reason; 292 int err_code; 293 }; 294 295 static struct error_bios flash_error_table[] = 296 { 297 {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE}, 298 {"PCI ID mismatch", FAIL_CHECK_PCI_ID}, 299 {"Checksum mismatch", FAIL_CHECK_SUM}, 300 {"Unknown Error", FAIL_UNKNOWN}, 301 {"Failed to verify.", FAIL_VERIFY}, 302 {"Failed to reset flash chip.", FAIL_RESET_FLASH}, 303 {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID}, 304 {"Failed to erash flash chip.", FAIL_ERASE_FLASH}, 305 {"Failed to program flash chip.", FAIL_WRITE_FLASH}, 306 {"Flash in progress", FLASH_IN_PROGRESS}, 307 {"Image file size Error", FAIL_FILE_SIZE}, 308 {"Input parameter error", FAIL_PARAMETERS}, 309 {"Out of memory", FAIL_OUT_MEMORY}, 310 {"OK", 0} /* Last entry err_code = 0. */ 311 }; 312 313 static ssize_t asd_store_update_bios(struct device *dev, 314 struct device_attribute *attr, 315 const char *buf, size_t count) 316 { 317 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 318 char *cmd_ptr, *filename_ptr; 319 struct bios_file_header header, *hdr_ptr; 320 int res, i; 321 u32 csum = 0; 322 int flash_command = FLASH_CMD_NONE; 323 int err = 0; 324 325 cmd_ptr = kcalloc(count, 2, GFP_KERNEL); 326 327 if (!cmd_ptr) { 328 err = FAIL_OUT_MEMORY; 329 goto out; 330 } 331 332 filename_ptr = cmd_ptr + count; 333 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 334 if (res != 2) { 335 err = FAIL_PARAMETERS; 336 goto out1; 337 } 338 339 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 340 if (!memcmp(flash_command_table[i].command, 341 cmd_ptr, strlen(cmd_ptr))) { 342 flash_command = flash_command_table[i].code; 343 break; 344 } 345 } 346 if (flash_command == FLASH_CMD_NONE) { 347 err = FAIL_PARAMETERS; 348 goto out1; 349 } 350 351 if (asd_ha->bios_status == FLASH_IN_PROGRESS) { 352 err = FLASH_IN_PROGRESS; 353 goto out1; 354 } 355 err = request_firmware(&asd_ha->bios_image, 356 filename_ptr, 357 &asd_ha->pcidev->dev); 358 if (err) { 359 asd_printk("Failed to load bios image file %s, error %d\n", 360 filename_ptr, err); 361 err = FAIL_OPEN_BIOS_FILE; 362 goto out1; 363 } 364 365 hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data; 366 367 if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor || 368 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) && 369 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor || 370 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) { 371 372 ASD_DPRINTK("The PCI vendor or device id does not match\n"); 373 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x" 374 " pci vendor=%x pci dev=%x\n", 375 hdr_ptr->contrl_id.vendor, 376 hdr_ptr->contrl_id.device, 377 hdr_ptr->contrl_id.sub_vendor, 378 hdr_ptr->contrl_id.sub_device, 379 asd_ha->pcidev->vendor, 380 asd_ha->pcidev->device); 381 err = FAIL_CHECK_PCI_ID; 382 goto out2; 383 } 384 385 if (hdr_ptr->filelen != asd_ha->bios_image->size) { 386 err = FAIL_FILE_SIZE; 387 goto out2; 388 } 389 390 /* calculate checksum */ 391 for (i = 0; i < hdr_ptr->filelen; i++) 392 csum += asd_ha->bios_image->data[i]; 393 394 if ((csum & 0x0000ffff) != hdr_ptr->checksum) { 395 ASD_DPRINTK("BIOS file checksum mismatch\n"); 396 err = FAIL_CHECK_SUM; 397 goto out2; 398 } 399 if (flash_command == FLASH_CMD_UPDATE) { 400 asd_ha->bios_status = FLASH_IN_PROGRESS; 401 err = asd_write_flash_seg(asd_ha, 402 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 403 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 404 if (!err) 405 err = asd_verify_flash_seg(asd_ha, 406 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 407 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 408 } else { 409 asd_ha->bios_status = FLASH_IN_PROGRESS; 410 err = asd_verify_flash_seg(asd_ha, 411 &asd_ha->bios_image->data[sizeof(header)], 412 0, hdr_ptr->filelen-sizeof(header)); 413 } 414 415 out2: 416 release_firmware(asd_ha->bios_image); 417 out1: 418 kfree(cmd_ptr); 419 out: 420 asd_ha->bios_status = err; 421 422 if (!err) 423 return count; 424 else 425 return -err; 426 } 427 428 static ssize_t asd_show_update_bios(struct device *dev, 429 struct device_attribute *attr, char *buf) 430 { 431 int i; 432 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 433 434 for (i = 0; flash_error_table[i].err_code != 0; i++) { 435 if (flash_error_table[i].err_code == asd_ha->bios_status) 436 break; 437 } 438 if (asd_ha->bios_status != FLASH_IN_PROGRESS) 439 asd_ha->bios_status = FLASH_OK; 440 441 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 442 flash_error_table[i].err_code, 443 flash_error_table[i].reason); 444 } 445 446 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR, 447 asd_show_update_bios, asd_store_update_bios); 448 449 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha) 450 { 451 int err; 452 453 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); 454 if (err) 455 return err; 456 457 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 458 if (err) 459 goto err_rev; 460 461 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 462 if (err) 463 goto err_biosb; 464 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 465 if (err) 466 goto err_update_bios; 467 468 return 0; 469 470 err_update_bios: 471 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 472 err_biosb: 473 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 474 err_rev: 475 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); 476 return err; 477 } 478 479 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha) 480 { 481 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); 482 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 483 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 484 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 485 } 486 487 /* The first entry, 0, is used for dynamic ids, the rest for devices 488 * we know about. 489 */ 490 static const struct asd_pcidev_struct { 491 const char * name; 492 int (*setup)(struct asd_ha_struct *asd_ha); 493 } asd_pcidev_data[] = { 494 /* Id 0 is used for dynamic ids. */ 495 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter", 496 .setup = asd_aic9410_setup 497 }, 498 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter", 499 .setup = asd_aic9410_setup 500 }, 501 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter", 502 .setup = asd_aic9405_setup 503 }, 504 }; 505 506 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha) 507 { 508 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool", 509 &asd_ha->pcidev->dev, 510 sizeof(struct scb), 511 8, 0); 512 if (!asd_ha->scb_pool) { 513 asd_printk("couldn't create scb pool\n"); 514 return -ENOMEM; 515 } 516 517 return 0; 518 } 519 520 /* 521 * asd_free_edbs -- free empty data buffers 522 * asd_ha: pointer to host adapter structure 523 */ 524 static void asd_free_edbs(struct asd_ha_struct *asd_ha) 525 { 526 struct asd_seq_data *seq = &asd_ha->seq; 527 int i; 528 529 for (i = 0; i < seq->num_edbs; i++) 530 asd_free_coherent(asd_ha, seq->edb_arr[i]); 531 kfree(seq->edb_arr); 532 seq->edb_arr = NULL; 533 } 534 535 static void asd_free_escbs(struct asd_ha_struct *asd_ha) 536 { 537 struct asd_seq_data *seq = &asd_ha->seq; 538 int i; 539 540 for (i = 0; i < seq->num_escbs; i++) { 541 if (!list_empty(&seq->escb_arr[i]->list)) 542 list_del_init(&seq->escb_arr[i]->list); 543 544 asd_ascb_free(seq->escb_arr[i]); 545 } 546 kfree(seq->escb_arr); 547 seq->escb_arr = NULL; 548 } 549 550 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha) 551 { 552 int i; 553 554 if (asd_ha->hw_prof.ddb_ext) 555 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext); 556 if (asd_ha->hw_prof.scb_ext) 557 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext); 558 559 kfree(asd_ha->hw_prof.ddb_bitmap); 560 asd_ha->hw_prof.ddb_bitmap = NULL; 561 562 for (i = 0; i < ASD_MAX_PHYS; i++) { 563 struct asd_phy *phy = &asd_ha->phys[i]; 564 565 asd_free_coherent(asd_ha, phy->id_frm_tok); 566 } 567 if (asd_ha->seq.escb_arr) 568 asd_free_escbs(asd_ha); 569 if (asd_ha->seq.edb_arr) 570 asd_free_edbs(asd_ha); 571 if (asd_ha->hw_prof.ue.area) { 572 kfree(asd_ha->hw_prof.ue.area); 573 asd_ha->hw_prof.ue.area = NULL; 574 } 575 if (asd_ha->seq.tc_index_array) { 576 kfree(asd_ha->seq.tc_index_array); 577 kfree(asd_ha->seq.tc_index_bitmap); 578 asd_ha->seq.tc_index_array = NULL; 579 asd_ha->seq.tc_index_bitmap = NULL; 580 } 581 if (asd_ha->seq.actual_dl) { 582 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl); 583 asd_ha->seq.actual_dl = NULL; 584 asd_ha->seq.dl = NULL; 585 } 586 if (asd_ha->seq.next_scb.vaddr) { 587 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr, 588 asd_ha->seq.next_scb.dma_handle); 589 asd_ha->seq.next_scb.vaddr = NULL; 590 } 591 dma_pool_destroy(asd_ha->scb_pool); 592 asd_ha->scb_pool = NULL; 593 } 594 595 struct kmem_cache *asd_dma_token_cache; 596 struct kmem_cache *asd_ascb_cache; 597 598 static int asd_create_global_caches(void) 599 { 600 if (!asd_dma_token_cache) { 601 asd_dma_token_cache 602 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token", 603 sizeof(struct asd_dma_tok), 604 0, 605 SLAB_HWCACHE_ALIGN, 606 NULL); 607 if (!asd_dma_token_cache) { 608 asd_printk("couldn't create dma token cache\n"); 609 return -ENOMEM; 610 } 611 } 612 613 if (!asd_ascb_cache) { 614 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb", 615 sizeof(struct asd_ascb), 616 0, 617 SLAB_HWCACHE_ALIGN, 618 NULL); 619 if (!asd_ascb_cache) { 620 asd_printk("couldn't create ascb cache\n"); 621 goto Err; 622 } 623 } 624 625 return 0; 626 Err: 627 kmem_cache_destroy(asd_dma_token_cache); 628 asd_dma_token_cache = NULL; 629 return -ENOMEM; 630 } 631 632 static void asd_destroy_global_caches(void) 633 { 634 kmem_cache_destroy(asd_dma_token_cache); 635 asd_dma_token_cache = NULL; 636 637 kmem_cache_destroy(asd_ascb_cache); 638 asd_ascb_cache = NULL; 639 } 640 641 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha) 642 { 643 int i; 644 struct asd_sas_phy **sas_phys = 645 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL); 646 struct asd_sas_port **sas_ports = 647 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL); 648 649 if (!sas_phys || !sas_ports) { 650 kfree(sas_phys); 651 kfree(sas_ports); 652 return -ENOMEM; 653 } 654 655 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name; 656 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0]; 657 658 for (i = 0; i < ASD_MAX_PHYS; i++) { 659 sas_phys[i] = &asd_ha->phys[i].sas_phy; 660 sas_ports[i] = &asd_ha->ports[i]; 661 } 662 663 asd_ha->sas_ha.sas_phy = sas_phys; 664 asd_ha->sas_ha.sas_port= sas_ports; 665 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS; 666 667 return sas_register_ha(&asd_ha->sas_ha); 668 } 669 670 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha) 671 { 672 int err; 673 674 err = sas_unregister_ha(&asd_ha->sas_ha); 675 676 sas_remove_host(asd_ha->sas_ha.shost); 677 scsi_host_put(asd_ha->sas_ha.shost); 678 679 kfree(asd_ha->sas_ha.sas_phy); 680 kfree(asd_ha->sas_ha.sas_port); 681 682 return err; 683 } 684 685 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) 686 { 687 const struct asd_pcidev_struct *asd_dev; 688 unsigned asd_id = (unsigned) id->driver_data; 689 struct asd_ha_struct *asd_ha; 690 struct Scsi_Host *shost; 691 int err; 692 693 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) { 694 asd_printk("wrong driver_data in PCI table\n"); 695 return -ENODEV; 696 } 697 698 if ((err = pci_enable_device(dev))) { 699 asd_printk("couldn't enable device %s\n", pci_name(dev)); 700 return err; 701 } 702 703 pci_set_master(dev); 704 705 err = -ENOMEM; 706 707 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *)); 708 if (!shost) 709 goto Err; 710 711 asd_dev = &asd_pcidev_data[asd_id]; 712 713 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL); 714 if (!asd_ha) { 715 asd_printk("out of memory\n"); 716 goto Err_put; 717 } 718 asd_ha->pcidev = dev; 719 asd_ha->sas_ha.dev = &asd_ha->pcidev->dev; 720 asd_ha->sas_ha.lldd_ha = asd_ha; 721 722 asd_ha->bios_status = FLASH_OK; 723 asd_ha->name = asd_dev->name; 724 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev)); 725 726 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha; 727 asd_ha->sas_ha.shost = shost; 728 shost->transportt = aic94xx_transport_template; 729 shost->max_id = ~0; 730 shost->max_lun = ~0; 731 shost->max_cmd_len = 16; 732 733 err = scsi_add_host(shost, &dev->dev); 734 if (err) 735 goto Err_free; 736 737 err = asd_dev->setup(asd_ha); 738 if (err) 739 goto Err_remove; 740 741 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64)); 742 if (err) 743 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); 744 if (err) { 745 err = -ENODEV; 746 asd_printk("no suitable DMA mask for %s\n", pci_name(dev)); 747 goto Err_remove; 748 } 749 750 pci_set_drvdata(dev, asd_ha); 751 752 err = asd_map_ha(asd_ha); 753 if (err) 754 goto Err_remove; 755 756 err = asd_create_ha_caches(asd_ha); 757 if (err) 758 goto Err_unmap; 759 760 err = asd_init_hw(asd_ha); 761 if (err) 762 goto Err_free_cache; 763 764 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled " 765 "phys, flash %s, BIOS %s%d\n", 766 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr), 767 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys, 768 asd_ha->hw_prof.num_phys, 769 asd_ha->hw_prof.flash.present ? "present" : "not present", 770 asd_ha->hw_prof.bios.present ? "build " : "not present", 771 asd_ha->hw_prof.bios.bld); 772 773 shost->can_queue = asd_ha->seq.can_queue; 774 775 if (use_msi) 776 pci_enable_msi(asd_ha->pcidev); 777 778 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED, 779 ASD_DRIVER_NAME, asd_ha); 780 if (err) { 781 asd_printk("couldn't get irq %d for %s\n", 782 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev)); 783 goto Err_irq; 784 } 785 asd_enable_ints(asd_ha); 786 787 err = asd_init_post_escbs(asd_ha); 788 if (err) { 789 asd_printk("couldn't post escbs for %s\n", 790 pci_name(asd_ha->pcidev)); 791 goto Err_escbs; 792 } 793 ASD_DPRINTK("escbs posted\n"); 794 795 err = asd_create_dev_attrs(asd_ha); 796 if (err) 797 goto Err_dev_attrs; 798 799 err = asd_register_sas_ha(asd_ha); 800 if (err) 801 goto Err_reg_sas; 802 803 scsi_scan_host(shost); 804 805 return 0; 806 807 Err_reg_sas: 808 asd_remove_dev_attrs(asd_ha); 809 Err_dev_attrs: 810 Err_escbs: 811 asd_disable_ints(asd_ha); 812 free_irq(dev->irq, asd_ha); 813 Err_irq: 814 if (use_msi) 815 pci_disable_msi(dev); 816 asd_chip_hardrst(asd_ha); 817 Err_free_cache: 818 asd_destroy_ha_caches(asd_ha); 819 Err_unmap: 820 asd_unmap_ha(asd_ha); 821 Err_remove: 822 scsi_remove_host(shost); 823 Err_free: 824 kfree(asd_ha); 825 Err_put: 826 scsi_host_put(shost); 827 Err: 828 pci_disable_device(dev); 829 return err; 830 } 831 832 static void asd_free_queues(struct asd_ha_struct *asd_ha) 833 { 834 unsigned long flags; 835 LIST_HEAD(pending); 836 struct list_head *n, *pos; 837 838 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags); 839 asd_ha->seq.pending = 0; 840 list_splice_init(&asd_ha->seq.pend_q, &pending); 841 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags); 842 843 if (!list_empty(&pending)) 844 ASD_DPRINTK("Uh-oh! Pending is not empty!\n"); 845 846 list_for_each_safe(pos, n, &pending) { 847 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list); 848 /* 849 * Delete unexpired ascb timers. This may happen if we issue 850 * a CONTROL PHY scb to an adapter and rmmod before the scb 851 * times out. Apparently we don't wait for the CONTROL PHY 852 * to complete, so it doesn't matter if we kill the timer. 853 */ 854 del_timer_sync(&ascb->timer); 855 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY); 856 857 list_del_init(pos); 858 ASD_DPRINTK("freeing from pending\n"); 859 asd_ascb_free(ascb); 860 } 861 } 862 863 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha) 864 { 865 u8 phy_mask = asd_ha->hw_prof.enabled_phys; 866 u8 i; 867 868 for_each_phy(phy_mask, phy_mask, i) { 869 asd_turn_led(asd_ha, i, 0); 870 asd_control_led(asd_ha, i, 0); 871 } 872 } 873 874 static void asd_pci_remove(struct pci_dev *dev) 875 { 876 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev); 877 878 if (!asd_ha) 879 return; 880 881 asd_unregister_sas_ha(asd_ha); 882 883 asd_disable_ints(asd_ha); 884 885 asd_remove_dev_attrs(asd_ha); 886 887 /* XXX more here as needed */ 888 889 free_irq(dev->irq, asd_ha); 890 if (use_msi) 891 pci_disable_msi(asd_ha->pcidev); 892 asd_turn_off_leds(asd_ha); 893 asd_chip_hardrst(asd_ha); 894 asd_free_queues(asd_ha); 895 asd_destroy_ha_caches(asd_ha); 896 asd_unmap_ha(asd_ha); 897 kfree(asd_ha); 898 pci_disable_device(dev); 899 return; 900 } 901 902 static void asd_scan_start(struct Scsi_Host *shost) 903 { 904 struct asd_ha_struct *asd_ha; 905 int err; 906 907 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha; 908 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys); 909 if (err) 910 asd_printk("Couldn't enable phys, err:%d\n", err); 911 } 912 913 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time) 914 { 915 /* give the phy enabling interrupt event time to come in (1s 916 * is empirically about all it takes) */ 917 if (time < HZ) 918 return 0; 919 /* Wait for discovery to finish */ 920 sas_drain_work(SHOST_TO_SAS_HA(shost)); 921 return 1; 922 } 923 924 static ssize_t version_show(struct device_driver *driver, char *buf) 925 { 926 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION); 927 } 928 static DRIVER_ATTR_RO(version); 929 930 static int asd_create_driver_attrs(struct device_driver *driver) 931 { 932 return driver_create_file(driver, &driver_attr_version); 933 } 934 935 static void asd_remove_driver_attrs(struct device_driver *driver) 936 { 937 driver_remove_file(driver, &driver_attr_version); 938 } 939 940 static const struct attribute_group *asd_sdev_groups[] = { 941 &sas_ata_sdev_attr_group, 942 NULL 943 }; 944 945 static struct sas_domain_function_template aic94xx_transport_functions = { 946 .lldd_dev_found = asd_dev_found, 947 .lldd_dev_gone = asd_dev_gone, 948 949 .lldd_execute_task = asd_execute_task, 950 951 .lldd_abort_task = asd_abort_task, 952 .lldd_abort_task_set = asd_abort_task_set, 953 .lldd_clear_task_set = asd_clear_task_set, 954 .lldd_I_T_nexus_reset = asd_I_T_nexus_reset, 955 .lldd_lu_reset = asd_lu_reset, 956 .lldd_query_task = asd_query_task, 957 958 .lldd_clear_nexus_port = asd_clear_nexus_port, 959 .lldd_clear_nexus_ha = asd_clear_nexus_ha, 960 961 .lldd_control_phy = asd_control_phy, 962 963 .lldd_ata_set_dmamode = asd_set_dmamode, 964 }; 965 966 static const struct pci_device_id aic94xx_pci_table[] = { 967 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1}, 968 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1}, 969 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1}, 970 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1}, 971 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1}, 972 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2}, 973 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2}, 974 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2}, 975 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2}, 976 {} 977 }; 978 979 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table); 980 981 static struct pci_driver aic94xx_pci_driver = { 982 .name = ASD_DRIVER_NAME, 983 .id_table = aic94xx_pci_table, 984 .probe = asd_pci_probe, 985 .remove = asd_pci_remove, 986 }; 987 988 static int __init aic94xx_init(void) 989 { 990 int err; 991 992 993 asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION, 994 ASD_DRIVER_VERSION); 995 996 err = asd_create_global_caches(); 997 if (err) 998 return err; 999 1000 aic94xx_transport_template = 1001 sas_domain_attach_transport(&aic94xx_transport_functions); 1002 if (!aic94xx_transport_template) { 1003 err = -ENOMEM; 1004 goto out_destroy_caches; 1005 } 1006 1007 err = pci_register_driver(&aic94xx_pci_driver); 1008 if (err) 1009 goto out_release_transport; 1010 1011 err = asd_create_driver_attrs(&aic94xx_pci_driver.driver); 1012 if (err) 1013 goto out_unregister_pcidrv; 1014 1015 return err; 1016 1017 out_unregister_pcidrv: 1018 pci_unregister_driver(&aic94xx_pci_driver); 1019 out_release_transport: 1020 sas_release_transport(aic94xx_transport_template); 1021 out_destroy_caches: 1022 asd_destroy_global_caches(); 1023 1024 return err; 1025 } 1026 1027 static void __exit aic94xx_exit(void) 1028 { 1029 asd_remove_driver_attrs(&aic94xx_pci_driver.driver); 1030 pci_unregister_driver(&aic94xx_pci_driver); 1031 sas_release_transport(aic94xx_transport_template); 1032 asd_release_firmware(); 1033 asd_destroy_global_caches(); 1034 asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION, 1035 ASD_DRIVER_VERSION); 1036 } 1037 1038 module_init(aic94xx_init); 1039 module_exit(aic94xx_exit); 1040 1041 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>"); 1042 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION); 1043 MODULE_LICENSE("GPL v2"); 1044 MODULE_VERSION(ASD_DRIVER_VERSION); 1045