1 /* 2 * Aic94xx SAS/SATA driver initialization. 3 * 4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved. 5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> 6 * 7 * This file is licensed under GPLv2. 8 * 9 * This file is part of the aic94xx driver. 10 * 11 * The aic94xx driver is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU General Public License as 13 * published by the Free Software Foundation; version 2 of the 14 * License. 15 * 16 * The aic94xx driver is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with the aic94xx driver; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 24 * 25 */ 26 27 #include <linux/module.h> 28 #include <linux/init.h> 29 #include <linux/kernel.h> 30 #include <linux/pci.h> 31 #include <linux/delay.h> 32 #include <linux/firmware.h> 33 #include <linux/slab.h> 34 35 #include <scsi/scsi_host.h> 36 37 #include "aic94xx.h" 38 #include "aic94xx_reg.h" 39 #include "aic94xx_hwi.h" 40 #include "aic94xx_seq.h" 41 #include "aic94xx_sds.h" 42 43 /* The format is "version.release.patchlevel" */ 44 #define ASD_DRIVER_VERSION "1.0.3" 45 46 static int use_msi = 0; 47 module_param_named(use_msi, use_msi, int, S_IRUGO); 48 MODULE_PARM_DESC(use_msi, "\n" 49 "\tEnable(1) or disable(0) using PCI MSI.\n" 50 "\tDefault: 0"); 51 52 static int lldd_max_execute_num = 0; 53 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO); 54 MODULE_PARM_DESC(collector, "\n" 55 "\tIf greater than one, tells the SAS Layer to run in Task Collector\n" 56 "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n" 57 "\tThe aic94xx SAS LLDD supports both modes.\n" 58 "\tDefault: 0 (Direct Mode).\n"); 59 60 static struct scsi_transport_template *aic94xx_transport_template; 61 static int asd_scan_finished(struct Scsi_Host *, unsigned long); 62 static void asd_scan_start(struct Scsi_Host *); 63 64 static struct scsi_host_template aic94xx_sht = { 65 .module = THIS_MODULE, 66 /* .name is initialized */ 67 .name = "aic94xx", 68 .queuecommand = sas_queuecommand, 69 .target_alloc = sas_target_alloc, 70 .slave_configure = sas_slave_configure, 71 .scan_finished = asd_scan_finished, 72 .scan_start = asd_scan_start, 73 .change_queue_depth = sas_change_queue_depth, 74 .change_queue_type = sas_change_queue_type, 75 .bios_param = sas_bios_param, 76 .can_queue = 1, 77 .cmd_per_lun = 1, 78 .this_id = -1, 79 .sg_tablesize = SG_ALL, 80 .max_sectors = SCSI_DEFAULT_MAX_SECTORS, 81 .use_clustering = ENABLE_CLUSTERING, 82 .eh_device_reset_handler = sas_eh_device_reset_handler, 83 .eh_bus_reset_handler = sas_eh_bus_reset_handler, 84 .target_destroy = sas_target_destroy, 85 .ioctl = sas_ioctl, 86 }; 87 88 static int asd_map_memio(struct asd_ha_struct *asd_ha) 89 { 90 int err, i; 91 struct asd_ha_addrspace *io_handle; 92 93 asd_ha->iospace = 0; 94 for (i = 0; i < 3; i += 2) { 95 io_handle = &asd_ha->io_handle[i==0?0:1]; 96 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 97 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 98 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 99 err = -ENODEV; 100 if (!io_handle->start || !io_handle->len) { 101 asd_printk("MBAR%d start or length for %s is 0.\n", 102 i==0?0:1, pci_name(asd_ha->pcidev)); 103 goto Err; 104 } 105 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 106 if (err) { 107 asd_printk("couldn't reserve memory region for %s\n", 108 pci_name(asd_ha->pcidev)); 109 goto Err; 110 } 111 if (io_handle->flags & IORESOURCE_CACHEABLE) 112 io_handle->addr = ioremap(io_handle->start, 113 io_handle->len); 114 else 115 io_handle->addr = ioremap_nocache(io_handle->start, 116 io_handle->len); 117 if (!io_handle->addr) { 118 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1, 119 pci_name(asd_ha->pcidev)); 120 goto Err_unreq; 121 } 122 } 123 124 return 0; 125 Err_unreq: 126 pci_release_region(asd_ha->pcidev, i); 127 Err: 128 if (i > 0) { 129 io_handle = &asd_ha->io_handle[0]; 130 iounmap(io_handle->addr); 131 pci_release_region(asd_ha->pcidev, 0); 132 } 133 return err; 134 } 135 136 static void asd_unmap_memio(struct asd_ha_struct *asd_ha) 137 { 138 struct asd_ha_addrspace *io_handle; 139 140 io_handle = &asd_ha->io_handle[1]; 141 iounmap(io_handle->addr); 142 pci_release_region(asd_ha->pcidev, 2); 143 144 io_handle = &asd_ha->io_handle[0]; 145 iounmap(io_handle->addr); 146 pci_release_region(asd_ha->pcidev, 0); 147 } 148 149 static int asd_map_ioport(struct asd_ha_struct *asd_ha) 150 { 151 int i = PCI_IOBAR_OFFSET, err; 152 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0]; 153 154 asd_ha->iospace = 1; 155 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 156 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 157 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 158 io_handle->addr = (void __iomem *) io_handle->start; 159 if (!io_handle->start || !io_handle->len) { 160 asd_printk("couldn't get IO ports for %s\n", 161 pci_name(asd_ha->pcidev)); 162 return -ENODEV; 163 } 164 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 165 if (err) { 166 asd_printk("couldn't reserve io space for %s\n", 167 pci_name(asd_ha->pcidev)); 168 } 169 170 return err; 171 } 172 173 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha) 174 { 175 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET); 176 } 177 178 static int asd_map_ha(struct asd_ha_struct *asd_ha) 179 { 180 int err; 181 u16 cmd_reg; 182 183 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg); 184 if (err) { 185 asd_printk("couldn't read command register of %s\n", 186 pci_name(asd_ha->pcidev)); 187 goto Err; 188 } 189 190 err = -ENODEV; 191 if (cmd_reg & PCI_COMMAND_MEMORY) { 192 if ((err = asd_map_memio(asd_ha))) 193 goto Err; 194 } else if (cmd_reg & PCI_COMMAND_IO) { 195 if ((err = asd_map_ioport(asd_ha))) 196 goto Err; 197 asd_printk("%s ioport mapped -- upgrade your hardware\n", 198 pci_name(asd_ha->pcidev)); 199 } else { 200 asd_printk("no proper device access to %s\n", 201 pci_name(asd_ha->pcidev)); 202 goto Err; 203 } 204 205 return 0; 206 Err: 207 return err; 208 } 209 210 static void asd_unmap_ha(struct asd_ha_struct *asd_ha) 211 { 212 if (asd_ha->iospace) 213 asd_unmap_ioport(asd_ha); 214 else 215 asd_unmap_memio(asd_ha); 216 } 217 218 static const char *asd_dev_rev[30] = { 219 [0] = "A0", 220 [1] = "A1", 221 [8] = "B0", 222 }; 223 224 static int asd_common_setup(struct asd_ha_struct *asd_ha) 225 { 226 int err, i; 227 228 asd_ha->revision_id = asd_ha->pcidev->revision; 229 230 err = -ENODEV; 231 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) { 232 asd_printk("%s is revision %s (%X), which is not supported\n", 233 pci_name(asd_ha->pcidev), 234 asd_dev_rev[asd_ha->revision_id], 235 asd_ha->revision_id); 236 goto Err; 237 } 238 /* Provide some sane default values. */ 239 asd_ha->hw_prof.max_scbs = 512; 240 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS; 241 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS; 242 /* All phys are enabled, by default. */ 243 asd_ha->hw_prof.enabled_phys = 0xFF; 244 for (i = 0; i < ASD_MAX_PHYS; i++) { 245 asd_ha->hw_prof.phy_desc[i].max_sas_lrate = 246 SAS_LINK_RATE_3_0_GBPS; 247 asd_ha->hw_prof.phy_desc[i].min_sas_lrate = 248 SAS_LINK_RATE_1_5_GBPS; 249 asd_ha->hw_prof.phy_desc[i].max_sata_lrate = 250 SAS_LINK_RATE_1_5_GBPS; 251 asd_ha->hw_prof.phy_desc[i].min_sata_lrate = 252 SAS_LINK_RATE_1_5_GBPS; 253 } 254 255 return 0; 256 Err: 257 return err; 258 } 259 260 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha) 261 { 262 int err = asd_common_setup(asd_ha); 263 264 if (err) 265 return err; 266 267 asd_ha->hw_prof.addr_range = 8; 268 asd_ha->hw_prof.port_name_base = 0; 269 asd_ha->hw_prof.dev_name_base = 8; 270 asd_ha->hw_prof.sata_name_base = 16; 271 272 return 0; 273 } 274 275 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha) 276 { 277 int err = asd_common_setup(asd_ha); 278 279 if (err) 280 return err; 281 282 asd_ha->hw_prof.addr_range = 4; 283 asd_ha->hw_prof.port_name_base = 0; 284 asd_ha->hw_prof.dev_name_base = 4; 285 asd_ha->hw_prof.sata_name_base = 8; 286 287 return 0; 288 } 289 290 static ssize_t asd_show_dev_rev(struct device *dev, 291 struct device_attribute *attr, char *buf) 292 { 293 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 294 return snprintf(buf, PAGE_SIZE, "%s\n", 295 asd_dev_rev[asd_ha->revision_id]); 296 } 297 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL); 298 299 static ssize_t asd_show_dev_bios_build(struct device *dev, 300 struct device_attribute *attr,char *buf) 301 { 302 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 303 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld); 304 } 305 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL); 306 307 static ssize_t asd_show_dev_pcba_sn(struct device *dev, 308 struct device_attribute *attr, char *buf) 309 { 310 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 311 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn); 312 } 313 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL); 314 315 #define FLASH_CMD_NONE 0x00 316 #define FLASH_CMD_UPDATE 0x01 317 #define FLASH_CMD_VERIFY 0x02 318 319 struct flash_command { 320 u8 command[8]; 321 int code; 322 }; 323 324 static struct flash_command flash_command_table[] = 325 { 326 {"verify", FLASH_CMD_VERIFY}, 327 {"update", FLASH_CMD_UPDATE}, 328 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 329 }; 330 331 struct error_bios { 332 char *reason; 333 int err_code; 334 }; 335 336 static struct error_bios flash_error_table[] = 337 { 338 {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE}, 339 {"PCI ID mismatch", FAIL_CHECK_PCI_ID}, 340 {"Checksum mismatch", FAIL_CHECK_SUM}, 341 {"Unknown Error", FAIL_UNKNOWN}, 342 {"Failed to verify.", FAIL_VERIFY}, 343 {"Failed to reset flash chip.", FAIL_RESET_FLASH}, 344 {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID}, 345 {"Failed to erash flash chip.", FAIL_ERASE_FLASH}, 346 {"Failed to program flash chip.", FAIL_WRITE_FLASH}, 347 {"Flash in progress", FLASH_IN_PROGRESS}, 348 {"Image file size Error", FAIL_FILE_SIZE}, 349 {"Input parameter error", FAIL_PARAMETERS}, 350 {"Out of memory", FAIL_OUT_MEMORY}, 351 {"OK", 0} /* Last entry err_code = 0. */ 352 }; 353 354 static ssize_t asd_store_update_bios(struct device *dev, 355 struct device_attribute *attr, 356 const char *buf, size_t count) 357 { 358 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 359 char *cmd_ptr, *filename_ptr; 360 struct bios_file_header header, *hdr_ptr; 361 int res, i; 362 u32 csum = 0; 363 int flash_command = FLASH_CMD_NONE; 364 int err = 0; 365 366 cmd_ptr = kzalloc(count*2, GFP_KERNEL); 367 368 if (!cmd_ptr) { 369 err = FAIL_OUT_MEMORY; 370 goto out; 371 } 372 373 filename_ptr = cmd_ptr + count; 374 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 375 if (res != 2) { 376 err = FAIL_PARAMETERS; 377 goto out1; 378 } 379 380 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 381 if (!memcmp(flash_command_table[i].command, 382 cmd_ptr, strlen(cmd_ptr))) { 383 flash_command = flash_command_table[i].code; 384 break; 385 } 386 } 387 if (flash_command == FLASH_CMD_NONE) { 388 err = FAIL_PARAMETERS; 389 goto out1; 390 } 391 392 if (asd_ha->bios_status == FLASH_IN_PROGRESS) { 393 err = FLASH_IN_PROGRESS; 394 goto out1; 395 } 396 err = request_firmware(&asd_ha->bios_image, 397 filename_ptr, 398 &asd_ha->pcidev->dev); 399 if (err) { 400 asd_printk("Failed to load bios image file %s, error %d\n", 401 filename_ptr, err); 402 err = FAIL_OPEN_BIOS_FILE; 403 goto out1; 404 } 405 406 hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data; 407 408 if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor || 409 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) && 410 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor || 411 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) { 412 413 ASD_DPRINTK("The PCI vendor or device id does not match\n"); 414 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x" 415 " pci vendor=%x pci dev=%x\n", 416 hdr_ptr->contrl_id.vendor, 417 hdr_ptr->contrl_id.device, 418 hdr_ptr->contrl_id.sub_vendor, 419 hdr_ptr->contrl_id.sub_device, 420 asd_ha->pcidev->vendor, 421 asd_ha->pcidev->device); 422 err = FAIL_CHECK_PCI_ID; 423 goto out2; 424 } 425 426 if (hdr_ptr->filelen != asd_ha->bios_image->size) { 427 err = FAIL_FILE_SIZE; 428 goto out2; 429 } 430 431 /* calculate checksum */ 432 for (i = 0; i < hdr_ptr->filelen; i++) 433 csum += asd_ha->bios_image->data[i]; 434 435 if ((csum & 0x0000ffff) != hdr_ptr->checksum) { 436 ASD_DPRINTK("BIOS file checksum mismatch\n"); 437 err = FAIL_CHECK_SUM; 438 goto out2; 439 } 440 if (flash_command == FLASH_CMD_UPDATE) { 441 asd_ha->bios_status = FLASH_IN_PROGRESS; 442 err = asd_write_flash_seg(asd_ha, 443 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 444 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 445 if (!err) 446 err = asd_verify_flash_seg(asd_ha, 447 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 448 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 449 } else { 450 asd_ha->bios_status = FLASH_IN_PROGRESS; 451 err = asd_verify_flash_seg(asd_ha, 452 &asd_ha->bios_image->data[sizeof(header)], 453 0, hdr_ptr->filelen-sizeof(header)); 454 } 455 456 out2: 457 release_firmware(asd_ha->bios_image); 458 out1: 459 kfree(cmd_ptr); 460 out: 461 asd_ha->bios_status = err; 462 463 if (!err) 464 return count; 465 else 466 return -err; 467 } 468 469 static ssize_t asd_show_update_bios(struct device *dev, 470 struct device_attribute *attr, char *buf) 471 { 472 int i; 473 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 474 475 for (i = 0; flash_error_table[i].err_code != 0; i++) { 476 if (flash_error_table[i].err_code == asd_ha->bios_status) 477 break; 478 } 479 if (asd_ha->bios_status != FLASH_IN_PROGRESS) 480 asd_ha->bios_status = FLASH_OK; 481 482 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 483 flash_error_table[i].err_code, 484 flash_error_table[i].reason); 485 } 486 487 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR, 488 asd_show_update_bios, asd_store_update_bios); 489 490 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha) 491 { 492 int err; 493 494 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision); 495 if (err) 496 return err; 497 498 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 499 if (err) 500 goto err_rev; 501 502 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 503 if (err) 504 goto err_biosb; 505 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 506 if (err) 507 goto err_update_bios; 508 509 return 0; 510 511 err_update_bios: 512 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 513 err_biosb: 514 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 515 err_rev: 516 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision); 517 return err; 518 } 519 520 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha) 521 { 522 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision); 523 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 524 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 525 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 526 } 527 528 /* The first entry, 0, is used for dynamic ids, the rest for devices 529 * we know about. 530 */ 531 static const struct asd_pcidev_struct { 532 const char * name; 533 int (*setup)(struct asd_ha_struct *asd_ha); 534 } asd_pcidev_data[] = { 535 /* Id 0 is used for dynamic ids. */ 536 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter", 537 .setup = asd_aic9410_setup 538 }, 539 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter", 540 .setup = asd_aic9410_setup 541 }, 542 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter", 543 .setup = asd_aic9405_setup 544 }, 545 }; 546 547 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha) 548 { 549 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool", 550 &asd_ha->pcidev->dev, 551 sizeof(struct scb), 552 8, 0); 553 if (!asd_ha->scb_pool) { 554 asd_printk("couldn't create scb pool\n"); 555 return -ENOMEM; 556 } 557 558 return 0; 559 } 560 561 /** 562 * asd_free_edbs -- free empty data buffers 563 * asd_ha: pointer to host adapter structure 564 */ 565 static void asd_free_edbs(struct asd_ha_struct *asd_ha) 566 { 567 struct asd_seq_data *seq = &asd_ha->seq; 568 int i; 569 570 for (i = 0; i < seq->num_edbs; i++) 571 asd_free_coherent(asd_ha, seq->edb_arr[i]); 572 kfree(seq->edb_arr); 573 seq->edb_arr = NULL; 574 } 575 576 static void asd_free_escbs(struct asd_ha_struct *asd_ha) 577 { 578 struct asd_seq_data *seq = &asd_ha->seq; 579 int i; 580 581 for (i = 0; i < seq->num_escbs; i++) { 582 if (!list_empty(&seq->escb_arr[i]->list)) 583 list_del_init(&seq->escb_arr[i]->list); 584 585 asd_ascb_free(seq->escb_arr[i]); 586 } 587 kfree(seq->escb_arr); 588 seq->escb_arr = NULL; 589 } 590 591 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha) 592 { 593 int i; 594 595 if (asd_ha->hw_prof.ddb_ext) 596 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext); 597 if (asd_ha->hw_prof.scb_ext) 598 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext); 599 600 if (asd_ha->hw_prof.ddb_bitmap) 601 kfree(asd_ha->hw_prof.ddb_bitmap); 602 asd_ha->hw_prof.ddb_bitmap = NULL; 603 604 for (i = 0; i < ASD_MAX_PHYS; i++) { 605 struct asd_phy *phy = &asd_ha->phys[i]; 606 607 asd_free_coherent(asd_ha, phy->id_frm_tok); 608 } 609 if (asd_ha->seq.escb_arr) 610 asd_free_escbs(asd_ha); 611 if (asd_ha->seq.edb_arr) 612 asd_free_edbs(asd_ha); 613 if (asd_ha->hw_prof.ue.area) { 614 kfree(asd_ha->hw_prof.ue.area); 615 asd_ha->hw_prof.ue.area = NULL; 616 } 617 if (asd_ha->seq.tc_index_array) { 618 kfree(asd_ha->seq.tc_index_array); 619 kfree(asd_ha->seq.tc_index_bitmap); 620 asd_ha->seq.tc_index_array = NULL; 621 asd_ha->seq.tc_index_bitmap = NULL; 622 } 623 if (asd_ha->seq.actual_dl) { 624 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl); 625 asd_ha->seq.actual_dl = NULL; 626 asd_ha->seq.dl = NULL; 627 } 628 if (asd_ha->seq.next_scb.vaddr) { 629 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr, 630 asd_ha->seq.next_scb.dma_handle); 631 asd_ha->seq.next_scb.vaddr = NULL; 632 } 633 dma_pool_destroy(asd_ha->scb_pool); 634 asd_ha->scb_pool = NULL; 635 } 636 637 struct kmem_cache *asd_dma_token_cache; 638 struct kmem_cache *asd_ascb_cache; 639 640 static int asd_create_global_caches(void) 641 { 642 if (!asd_dma_token_cache) { 643 asd_dma_token_cache 644 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token", 645 sizeof(struct asd_dma_tok), 646 0, 647 SLAB_HWCACHE_ALIGN, 648 NULL); 649 if (!asd_dma_token_cache) { 650 asd_printk("couldn't create dma token cache\n"); 651 return -ENOMEM; 652 } 653 } 654 655 if (!asd_ascb_cache) { 656 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb", 657 sizeof(struct asd_ascb), 658 0, 659 SLAB_HWCACHE_ALIGN, 660 NULL); 661 if (!asd_ascb_cache) { 662 asd_printk("couldn't create ascb cache\n"); 663 goto Err; 664 } 665 } 666 667 return 0; 668 Err: 669 kmem_cache_destroy(asd_dma_token_cache); 670 asd_dma_token_cache = NULL; 671 return -ENOMEM; 672 } 673 674 static void asd_destroy_global_caches(void) 675 { 676 if (asd_dma_token_cache) 677 kmem_cache_destroy(asd_dma_token_cache); 678 asd_dma_token_cache = NULL; 679 680 if (asd_ascb_cache) 681 kmem_cache_destroy(asd_ascb_cache); 682 asd_ascb_cache = NULL; 683 } 684 685 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha) 686 { 687 int i; 688 struct asd_sas_phy **sas_phys = 689 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL); 690 struct asd_sas_port **sas_ports = 691 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL); 692 693 if (!sas_phys || !sas_ports) { 694 kfree(sas_phys); 695 kfree(sas_ports); 696 return -ENOMEM; 697 } 698 699 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name; 700 asd_ha->sas_ha.lldd_module = THIS_MODULE; 701 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0]; 702 703 for (i = 0; i < ASD_MAX_PHYS; i++) { 704 sas_phys[i] = &asd_ha->phys[i].sas_phy; 705 sas_ports[i] = &asd_ha->ports[i]; 706 } 707 708 asd_ha->sas_ha.sas_phy = sas_phys; 709 asd_ha->sas_ha.sas_port= sas_ports; 710 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS; 711 712 asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue; 713 asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num; 714 715 return sas_register_ha(&asd_ha->sas_ha); 716 } 717 718 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha) 719 { 720 int err; 721 722 err = sas_unregister_ha(&asd_ha->sas_ha); 723 724 sas_remove_host(asd_ha->sas_ha.core.shost); 725 scsi_remove_host(asd_ha->sas_ha.core.shost); 726 scsi_host_put(asd_ha->sas_ha.core.shost); 727 728 kfree(asd_ha->sas_ha.sas_phy); 729 kfree(asd_ha->sas_ha.sas_port); 730 731 return err; 732 } 733 734 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) 735 { 736 const struct asd_pcidev_struct *asd_dev; 737 unsigned asd_id = (unsigned) id->driver_data; 738 struct asd_ha_struct *asd_ha; 739 struct Scsi_Host *shost; 740 int err; 741 742 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) { 743 asd_printk("wrong driver_data in PCI table\n"); 744 return -ENODEV; 745 } 746 747 if ((err = pci_enable_device(dev))) { 748 asd_printk("couldn't enable device %s\n", pci_name(dev)); 749 return err; 750 } 751 752 pci_set_master(dev); 753 754 err = -ENOMEM; 755 756 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *)); 757 if (!shost) 758 goto Err; 759 760 asd_dev = &asd_pcidev_data[asd_id]; 761 762 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL); 763 if (!asd_ha) { 764 asd_printk("out of memory\n"); 765 goto Err_put; 766 } 767 asd_ha->pcidev = dev; 768 asd_ha->sas_ha.dev = &asd_ha->pcidev->dev; 769 asd_ha->sas_ha.lldd_ha = asd_ha; 770 771 asd_ha->bios_status = FLASH_OK; 772 asd_ha->name = asd_dev->name; 773 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev)); 774 775 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha; 776 asd_ha->sas_ha.core.shost = shost; 777 shost->transportt = aic94xx_transport_template; 778 shost->max_id = ~0; 779 shost->max_lun = ~0; 780 shost->max_cmd_len = 16; 781 782 err = scsi_add_host(shost, &dev->dev); 783 if (err) 784 goto Err_free; 785 786 err = asd_dev->setup(asd_ha); 787 if (err) 788 goto Err_remove; 789 790 err = -ENODEV; 791 if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64)) 792 && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64))) 793 ; 794 else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32)) 795 && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32))) 796 ; 797 else { 798 asd_printk("no suitable DMA mask for %s\n", pci_name(dev)); 799 goto Err_remove; 800 } 801 802 pci_set_drvdata(dev, asd_ha); 803 804 err = asd_map_ha(asd_ha); 805 if (err) 806 goto Err_remove; 807 808 err = asd_create_ha_caches(asd_ha); 809 if (err) 810 goto Err_unmap; 811 812 err = asd_init_hw(asd_ha); 813 if (err) 814 goto Err_free_cache; 815 816 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled " 817 "phys, flash %s, BIOS %s%d\n", 818 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr), 819 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys, 820 asd_ha->hw_prof.num_phys, 821 asd_ha->hw_prof.flash.present ? "present" : "not present", 822 asd_ha->hw_prof.bios.present ? "build " : "not present", 823 asd_ha->hw_prof.bios.bld); 824 825 shost->can_queue = asd_ha->seq.can_queue; 826 827 if (use_msi) 828 pci_enable_msi(asd_ha->pcidev); 829 830 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED, 831 ASD_DRIVER_NAME, asd_ha); 832 if (err) { 833 asd_printk("couldn't get irq %d for %s\n", 834 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev)); 835 goto Err_irq; 836 } 837 asd_enable_ints(asd_ha); 838 839 err = asd_init_post_escbs(asd_ha); 840 if (err) { 841 asd_printk("couldn't post escbs for %s\n", 842 pci_name(asd_ha->pcidev)); 843 goto Err_escbs; 844 } 845 ASD_DPRINTK("escbs posted\n"); 846 847 err = asd_create_dev_attrs(asd_ha); 848 if (err) 849 goto Err_dev_attrs; 850 851 err = asd_register_sas_ha(asd_ha); 852 if (err) 853 goto Err_reg_sas; 854 855 scsi_scan_host(shost); 856 857 return 0; 858 859 Err_reg_sas: 860 asd_remove_dev_attrs(asd_ha); 861 Err_dev_attrs: 862 Err_escbs: 863 asd_disable_ints(asd_ha); 864 free_irq(dev->irq, asd_ha); 865 Err_irq: 866 if (use_msi) 867 pci_disable_msi(dev); 868 asd_chip_hardrst(asd_ha); 869 Err_free_cache: 870 asd_destroy_ha_caches(asd_ha); 871 Err_unmap: 872 asd_unmap_ha(asd_ha); 873 Err_remove: 874 scsi_remove_host(shost); 875 Err_free: 876 kfree(asd_ha); 877 Err_put: 878 scsi_host_put(shost); 879 Err: 880 pci_disable_device(dev); 881 return err; 882 } 883 884 static void asd_free_queues(struct asd_ha_struct *asd_ha) 885 { 886 unsigned long flags; 887 LIST_HEAD(pending); 888 struct list_head *n, *pos; 889 890 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags); 891 asd_ha->seq.pending = 0; 892 list_splice_init(&asd_ha->seq.pend_q, &pending); 893 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags); 894 895 if (!list_empty(&pending)) 896 ASD_DPRINTK("Uh-oh! Pending is not empty!\n"); 897 898 list_for_each_safe(pos, n, &pending) { 899 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list); 900 /* 901 * Delete unexpired ascb timers. This may happen if we issue 902 * a CONTROL PHY scb to an adapter and rmmod before the scb 903 * times out. Apparently we don't wait for the CONTROL PHY 904 * to complete, so it doesn't matter if we kill the timer. 905 */ 906 del_timer_sync(&ascb->timer); 907 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY); 908 909 list_del_init(pos); 910 ASD_DPRINTK("freeing from pending\n"); 911 asd_ascb_free(ascb); 912 } 913 } 914 915 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha) 916 { 917 u8 phy_mask = asd_ha->hw_prof.enabled_phys; 918 u8 i; 919 920 for_each_phy(phy_mask, phy_mask, i) { 921 asd_turn_led(asd_ha, i, 0); 922 asd_control_led(asd_ha, i, 0); 923 } 924 } 925 926 static void asd_pci_remove(struct pci_dev *dev) 927 { 928 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev); 929 930 if (!asd_ha) 931 return; 932 933 asd_unregister_sas_ha(asd_ha); 934 935 asd_disable_ints(asd_ha); 936 937 asd_remove_dev_attrs(asd_ha); 938 939 /* XXX more here as needed */ 940 941 free_irq(dev->irq, asd_ha); 942 if (use_msi) 943 pci_disable_msi(asd_ha->pcidev); 944 asd_turn_off_leds(asd_ha); 945 asd_chip_hardrst(asd_ha); 946 asd_free_queues(asd_ha); 947 asd_destroy_ha_caches(asd_ha); 948 asd_unmap_ha(asd_ha); 949 kfree(asd_ha); 950 pci_disable_device(dev); 951 return; 952 } 953 954 static void asd_scan_start(struct Scsi_Host *shost) 955 { 956 struct asd_ha_struct *asd_ha; 957 int err; 958 959 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha; 960 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys); 961 if (err) 962 asd_printk("Couldn't enable phys, err:%d\n", err); 963 } 964 965 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time) 966 { 967 /* give the phy enabling interrupt event time to come in (1s 968 * is empirically about all it takes) */ 969 if (time < HZ) 970 return 0; 971 /* Wait for discovery to finish */ 972 sas_drain_work(SHOST_TO_SAS_HA(shost)); 973 return 1; 974 } 975 976 static ssize_t asd_version_show(struct device_driver *driver, char *buf) 977 { 978 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION); 979 } 980 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL); 981 982 static int asd_create_driver_attrs(struct device_driver *driver) 983 { 984 return driver_create_file(driver, &driver_attr_version); 985 } 986 987 static void asd_remove_driver_attrs(struct device_driver *driver) 988 { 989 driver_remove_file(driver, &driver_attr_version); 990 } 991 992 static struct sas_domain_function_template aic94xx_transport_functions = { 993 .lldd_dev_found = asd_dev_found, 994 .lldd_dev_gone = asd_dev_gone, 995 996 .lldd_execute_task = asd_execute_task, 997 998 .lldd_abort_task = asd_abort_task, 999 .lldd_abort_task_set = asd_abort_task_set, 1000 .lldd_clear_aca = asd_clear_aca, 1001 .lldd_clear_task_set = asd_clear_task_set, 1002 .lldd_I_T_nexus_reset = asd_I_T_nexus_reset, 1003 .lldd_lu_reset = asd_lu_reset, 1004 .lldd_query_task = asd_query_task, 1005 1006 .lldd_clear_nexus_port = asd_clear_nexus_port, 1007 .lldd_clear_nexus_ha = asd_clear_nexus_ha, 1008 1009 .lldd_control_phy = asd_control_phy, 1010 1011 .lldd_ata_set_dmamode = asd_set_dmamode, 1012 }; 1013 1014 static const struct pci_device_id aic94xx_pci_table[] = { 1015 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1}, 1016 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1}, 1017 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1}, 1018 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1}, 1019 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1}, 1020 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2}, 1021 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2}, 1022 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2}, 1023 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2}, 1024 {} 1025 }; 1026 1027 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table); 1028 1029 static struct pci_driver aic94xx_pci_driver = { 1030 .name = ASD_DRIVER_NAME, 1031 .id_table = aic94xx_pci_table, 1032 .probe = asd_pci_probe, 1033 .remove = asd_pci_remove, 1034 }; 1035 1036 static int __init aic94xx_init(void) 1037 { 1038 int err; 1039 1040 1041 asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION, 1042 ASD_DRIVER_VERSION); 1043 1044 err = asd_create_global_caches(); 1045 if (err) 1046 return err; 1047 1048 aic94xx_transport_template = 1049 sas_domain_attach_transport(&aic94xx_transport_functions); 1050 if (!aic94xx_transport_template) 1051 goto out_destroy_caches; 1052 1053 err = pci_register_driver(&aic94xx_pci_driver); 1054 if (err) 1055 goto out_release_transport; 1056 1057 err = asd_create_driver_attrs(&aic94xx_pci_driver.driver); 1058 if (err) 1059 goto out_unregister_pcidrv; 1060 1061 return err; 1062 1063 out_unregister_pcidrv: 1064 pci_unregister_driver(&aic94xx_pci_driver); 1065 out_release_transport: 1066 sas_release_transport(aic94xx_transport_template); 1067 out_destroy_caches: 1068 asd_destroy_global_caches(); 1069 1070 return err; 1071 } 1072 1073 static void __exit aic94xx_exit(void) 1074 { 1075 asd_remove_driver_attrs(&aic94xx_pci_driver.driver); 1076 pci_unregister_driver(&aic94xx_pci_driver); 1077 sas_release_transport(aic94xx_transport_template); 1078 asd_release_firmware(); 1079 asd_destroy_global_caches(); 1080 asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION, 1081 ASD_DRIVER_VERSION); 1082 } 1083 1084 module_init(aic94xx_init); 1085 module_exit(aic94xx_exit); 1086 1087 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>"); 1088 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION); 1089 MODULE_LICENSE("GPL v2"); 1090 MODULE_VERSION(ASD_DRIVER_VERSION); 1091