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 34 #include <scsi/scsi_host.h> 35 36 #include "aic94xx.h" 37 #include "aic94xx_reg.h" 38 #include "aic94xx_hwi.h" 39 #include "aic94xx_seq.h" 40 #include "aic94xx_sds.h" 41 42 /* The format is "version.release.patchlevel" */ 43 #define ASD_DRIVER_VERSION "1.0.3" 44 45 static int use_msi = 0; 46 module_param_named(use_msi, use_msi, int, S_IRUGO); 47 MODULE_PARM_DESC(use_msi, "\n" 48 "\tEnable(1) or disable(0) using PCI MSI.\n" 49 "\tDefault: 0"); 50 51 static int lldd_max_execute_num = 0; 52 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO); 53 MODULE_PARM_DESC(collector, "\n" 54 "\tIf greater than one, tells the SAS Layer to run in Task Collector\n" 55 "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n" 56 "\tThe aic94xx SAS LLDD supports both modes.\n" 57 "\tDefault: 0 (Direct Mode).\n"); 58 59 static struct scsi_transport_template *aic94xx_transport_template; 60 static int asd_scan_finished(struct Scsi_Host *, unsigned long); 61 static void asd_scan_start(struct Scsi_Host *); 62 63 static struct scsi_host_template aic94xx_sht = { 64 .module = THIS_MODULE, 65 /* .name is initialized */ 66 .name = "aic94xx", 67 .queuecommand = sas_queuecommand, 68 .target_alloc = sas_target_alloc, 69 .slave_configure = sas_slave_configure, 70 .slave_destroy = sas_slave_destroy, 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 .slave_alloc = sas_slave_alloc, 85 .target_destroy = sas_target_destroy, 86 .ioctl = sas_ioctl, 87 }; 88 89 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha) 90 { 91 int err, i; 92 struct asd_ha_addrspace *io_handle; 93 94 asd_ha->iospace = 0; 95 for (i = 0; i < 3; i += 2) { 96 io_handle = &asd_ha->io_handle[i==0?0:1]; 97 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 98 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 99 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 100 err = -ENODEV; 101 if (!io_handle->start || !io_handle->len) { 102 asd_printk("MBAR%d start or length for %s is 0.\n", 103 i==0?0:1, pci_name(asd_ha->pcidev)); 104 goto Err; 105 } 106 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 107 if (err) { 108 asd_printk("couldn't reserve memory region for %s\n", 109 pci_name(asd_ha->pcidev)); 110 goto Err; 111 } 112 if (io_handle->flags & IORESOURCE_CACHEABLE) 113 io_handle->addr = ioremap(io_handle->start, 114 io_handle->len); 115 else 116 io_handle->addr = ioremap_nocache(io_handle->start, 117 io_handle->len); 118 if (!io_handle->addr) { 119 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1, 120 pci_name(asd_ha->pcidev)); 121 goto Err_unreq; 122 } 123 } 124 125 return 0; 126 Err_unreq: 127 pci_release_region(asd_ha->pcidev, i); 128 Err: 129 if (i > 0) { 130 io_handle = &asd_ha->io_handle[0]; 131 iounmap(io_handle->addr); 132 pci_release_region(asd_ha->pcidev, 0); 133 } 134 return err; 135 } 136 137 static void asd_unmap_memio(struct asd_ha_struct *asd_ha) 138 { 139 struct asd_ha_addrspace *io_handle; 140 141 io_handle = &asd_ha->io_handle[1]; 142 iounmap(io_handle->addr); 143 pci_release_region(asd_ha->pcidev, 2); 144 145 io_handle = &asd_ha->io_handle[0]; 146 iounmap(io_handle->addr); 147 pci_release_region(asd_ha->pcidev, 0); 148 } 149 150 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha) 151 { 152 int i = PCI_IOBAR_OFFSET, err; 153 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0]; 154 155 asd_ha->iospace = 1; 156 io_handle->start = pci_resource_start(asd_ha->pcidev, i); 157 io_handle->len = pci_resource_len(asd_ha->pcidev, i); 158 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); 159 io_handle->addr = (void __iomem *) io_handle->start; 160 if (!io_handle->start || !io_handle->len) { 161 asd_printk("couldn't get IO ports for %s\n", 162 pci_name(asd_ha->pcidev)); 163 return -ENODEV; 164 } 165 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); 166 if (err) { 167 asd_printk("couldn't reserve io space for %s\n", 168 pci_name(asd_ha->pcidev)); 169 } 170 171 return err; 172 } 173 174 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha) 175 { 176 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET); 177 } 178 179 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha) 180 { 181 int err; 182 u16 cmd_reg; 183 184 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg); 185 if (err) { 186 asd_printk("couldn't read command register of %s\n", 187 pci_name(asd_ha->pcidev)); 188 goto Err; 189 } 190 191 err = -ENODEV; 192 if (cmd_reg & PCI_COMMAND_MEMORY) { 193 if ((err = asd_map_memio(asd_ha))) 194 goto Err; 195 } else if (cmd_reg & PCI_COMMAND_IO) { 196 if ((err = asd_map_ioport(asd_ha))) 197 goto Err; 198 asd_printk("%s ioport mapped -- upgrade your hardware\n", 199 pci_name(asd_ha->pcidev)); 200 } else { 201 asd_printk("no proper device access to %s\n", 202 pci_name(asd_ha->pcidev)); 203 goto Err; 204 } 205 206 return 0; 207 Err: 208 return err; 209 } 210 211 static void asd_unmap_ha(struct asd_ha_struct *asd_ha) 212 { 213 if (asd_ha->iospace) 214 asd_unmap_ioport(asd_ha); 215 else 216 asd_unmap_memio(asd_ha); 217 } 218 219 static const char *asd_dev_rev[30] = { 220 [0] = "A0", 221 [1] = "A1", 222 [8] = "B0", 223 }; 224 225 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha) 226 { 227 int err, i; 228 229 asd_ha->revision_id = asd_ha->pcidev->revision; 230 231 err = -ENODEV; 232 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) { 233 asd_printk("%s is revision %s (%X), which is not supported\n", 234 pci_name(asd_ha->pcidev), 235 asd_dev_rev[asd_ha->revision_id], 236 asd_ha->revision_id); 237 goto Err; 238 } 239 /* Provide some sane default values. */ 240 asd_ha->hw_prof.max_scbs = 512; 241 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS; 242 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS; 243 /* All phys are enabled, by default. */ 244 asd_ha->hw_prof.enabled_phys = 0xFF; 245 for (i = 0; i < ASD_MAX_PHYS; i++) { 246 asd_ha->hw_prof.phy_desc[i].max_sas_lrate = 247 SAS_LINK_RATE_3_0_GBPS; 248 asd_ha->hw_prof.phy_desc[i].min_sas_lrate = 249 SAS_LINK_RATE_1_5_GBPS; 250 asd_ha->hw_prof.phy_desc[i].max_sata_lrate = 251 SAS_LINK_RATE_1_5_GBPS; 252 asd_ha->hw_prof.phy_desc[i].min_sata_lrate = 253 SAS_LINK_RATE_1_5_GBPS; 254 } 255 256 return 0; 257 Err: 258 return err; 259 } 260 261 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha) 262 { 263 int err = asd_common_setup(asd_ha); 264 265 if (err) 266 return err; 267 268 asd_ha->hw_prof.addr_range = 8; 269 asd_ha->hw_prof.port_name_base = 0; 270 asd_ha->hw_prof.dev_name_base = 8; 271 asd_ha->hw_prof.sata_name_base = 16; 272 273 return 0; 274 } 275 276 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha) 277 { 278 int err = asd_common_setup(asd_ha); 279 280 if (err) 281 return err; 282 283 asd_ha->hw_prof.addr_range = 4; 284 asd_ha->hw_prof.port_name_base = 0; 285 asd_ha->hw_prof.dev_name_base = 4; 286 asd_ha->hw_prof.sata_name_base = 8; 287 288 return 0; 289 } 290 291 static ssize_t asd_show_dev_rev(struct device *dev, 292 struct device_attribute *attr, char *buf) 293 { 294 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 295 return snprintf(buf, PAGE_SIZE, "%s\n", 296 asd_dev_rev[asd_ha->revision_id]); 297 } 298 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL); 299 300 static ssize_t asd_show_dev_bios_build(struct device *dev, 301 struct device_attribute *attr,char *buf) 302 { 303 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 304 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld); 305 } 306 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL); 307 308 static ssize_t asd_show_dev_pcba_sn(struct device *dev, 309 struct device_attribute *attr, char *buf) 310 { 311 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 312 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn); 313 } 314 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL); 315 316 #define FLASH_CMD_NONE 0x00 317 #define FLASH_CMD_UPDATE 0x01 318 #define FLASH_CMD_VERIFY 0x02 319 320 struct flash_command { 321 u8 command[8]; 322 int code; 323 }; 324 325 static struct flash_command flash_command_table[] = 326 { 327 {"verify", FLASH_CMD_VERIFY}, 328 {"update", FLASH_CMD_UPDATE}, 329 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ 330 }; 331 332 struct error_bios { 333 char *reason; 334 int err_code; 335 }; 336 337 static struct error_bios flash_error_table[] = 338 { 339 {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE}, 340 {"PCI ID mismatch", FAIL_CHECK_PCI_ID}, 341 {"Checksum mismatch", FAIL_CHECK_SUM}, 342 {"Unknown Error", FAIL_UNKNOWN}, 343 {"Failed to verify.", FAIL_VERIFY}, 344 {"Failed to reset flash chip.", FAIL_RESET_FLASH}, 345 {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID}, 346 {"Failed to erash flash chip.", FAIL_ERASE_FLASH}, 347 {"Failed to program flash chip.", FAIL_WRITE_FLASH}, 348 {"Flash in progress", FLASH_IN_PROGRESS}, 349 {"Image file size Error", FAIL_FILE_SIZE}, 350 {"Input parameter error", FAIL_PARAMETERS}, 351 {"Out of memory", FAIL_OUT_MEMORY}, 352 {"OK", 0} /* Last entry err_code = 0. */ 353 }; 354 355 static ssize_t asd_store_update_bios(struct device *dev, 356 struct device_attribute *attr, 357 const char *buf, size_t count) 358 { 359 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 360 char *cmd_ptr, *filename_ptr; 361 struct bios_file_header header, *hdr_ptr; 362 int res, i; 363 u32 csum = 0; 364 int flash_command = FLASH_CMD_NONE; 365 int err = 0; 366 367 cmd_ptr = kzalloc(count*2, GFP_KERNEL); 368 369 if (!cmd_ptr) { 370 err = FAIL_OUT_MEMORY; 371 goto out; 372 } 373 374 filename_ptr = cmd_ptr + count; 375 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); 376 if (res != 2) { 377 err = FAIL_PARAMETERS; 378 goto out1; 379 } 380 381 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { 382 if (!memcmp(flash_command_table[i].command, 383 cmd_ptr, strlen(cmd_ptr))) { 384 flash_command = flash_command_table[i].code; 385 break; 386 } 387 } 388 if (flash_command == FLASH_CMD_NONE) { 389 err = FAIL_PARAMETERS; 390 goto out1; 391 } 392 393 if (asd_ha->bios_status == FLASH_IN_PROGRESS) { 394 err = FLASH_IN_PROGRESS; 395 goto out1; 396 } 397 err = request_firmware(&asd_ha->bios_image, 398 filename_ptr, 399 &asd_ha->pcidev->dev); 400 if (err) { 401 asd_printk("Failed to load bios image file %s, error %d\n", 402 filename_ptr, err); 403 err = FAIL_OPEN_BIOS_FILE; 404 goto out1; 405 } 406 407 hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data; 408 409 if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor || 410 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) && 411 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor || 412 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) { 413 414 ASD_DPRINTK("The PCI vendor or device id does not match\n"); 415 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x" 416 " pci vendor=%x pci dev=%x\n", 417 hdr_ptr->contrl_id.vendor, 418 hdr_ptr->contrl_id.device, 419 hdr_ptr->contrl_id.sub_vendor, 420 hdr_ptr->contrl_id.sub_device, 421 asd_ha->pcidev->vendor, 422 asd_ha->pcidev->device); 423 err = FAIL_CHECK_PCI_ID; 424 goto out2; 425 } 426 427 if (hdr_ptr->filelen != asd_ha->bios_image->size) { 428 err = FAIL_FILE_SIZE; 429 goto out2; 430 } 431 432 /* calculate checksum */ 433 for (i = 0; i < hdr_ptr->filelen; i++) 434 csum += asd_ha->bios_image->data[i]; 435 436 if ((csum & 0x0000ffff) != hdr_ptr->checksum) { 437 ASD_DPRINTK("BIOS file checksum mismatch\n"); 438 err = FAIL_CHECK_SUM; 439 goto out2; 440 } 441 if (flash_command == FLASH_CMD_UPDATE) { 442 asd_ha->bios_status = FLASH_IN_PROGRESS; 443 err = asd_write_flash_seg(asd_ha, 444 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 445 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 446 if (!err) 447 err = asd_verify_flash_seg(asd_ha, 448 &asd_ha->bios_image->data[sizeof(*hdr_ptr)], 449 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); 450 } else { 451 asd_ha->bios_status = FLASH_IN_PROGRESS; 452 err = asd_verify_flash_seg(asd_ha, 453 &asd_ha->bios_image->data[sizeof(header)], 454 0, hdr_ptr->filelen-sizeof(header)); 455 } 456 457 out2: 458 release_firmware(asd_ha->bios_image); 459 out1: 460 kfree(cmd_ptr); 461 out: 462 asd_ha->bios_status = err; 463 464 if (!err) 465 return count; 466 else 467 return -err; 468 } 469 470 static ssize_t asd_show_update_bios(struct device *dev, 471 struct device_attribute *attr, char *buf) 472 { 473 int i; 474 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); 475 476 for (i = 0; flash_error_table[i].err_code != 0; i++) { 477 if (flash_error_table[i].err_code == asd_ha->bios_status) 478 break; 479 } 480 if (asd_ha->bios_status != FLASH_IN_PROGRESS) 481 asd_ha->bios_status = FLASH_OK; 482 483 return snprintf(buf, PAGE_SIZE, "status=%x %s\n", 484 flash_error_table[i].err_code, 485 flash_error_table[i].reason); 486 } 487 488 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUGO, 489 asd_show_update_bios, asd_store_update_bios); 490 491 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha) 492 { 493 int err; 494 495 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision); 496 if (err) 497 return err; 498 499 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 500 if (err) 501 goto err_rev; 502 503 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 504 if (err) 505 goto err_biosb; 506 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 507 if (err) 508 goto err_update_bios; 509 510 return 0; 511 512 err_update_bios: 513 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 514 err_biosb: 515 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 516 err_rev: 517 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision); 518 return err; 519 } 520 521 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha) 522 { 523 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision); 524 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); 525 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); 526 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); 527 } 528 529 /* The first entry, 0, is used for dynamic ids, the rest for devices 530 * we know about. 531 */ 532 static const struct asd_pcidev_struct { 533 const char * name; 534 int (*setup)(struct asd_ha_struct *asd_ha); 535 } asd_pcidev_data[] __devinitconst = { 536 /* Id 0 is used for dynamic ids. */ 537 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter", 538 .setup = asd_aic9410_setup 539 }, 540 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter", 541 .setup = asd_aic9410_setup 542 }, 543 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter", 544 .setup = asd_aic9405_setup 545 }, 546 }; 547 548 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha) 549 { 550 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool", 551 &asd_ha->pcidev->dev, 552 sizeof(struct scb), 553 8, 0); 554 if (!asd_ha->scb_pool) { 555 asd_printk("couldn't create scb pool\n"); 556 return -ENOMEM; 557 } 558 559 return 0; 560 } 561 562 /** 563 * asd_free_edbs -- free empty data buffers 564 * asd_ha: pointer to host adapter structure 565 */ 566 static void asd_free_edbs(struct asd_ha_struct *asd_ha) 567 { 568 struct asd_seq_data *seq = &asd_ha->seq; 569 int i; 570 571 for (i = 0; i < seq->num_edbs; i++) 572 asd_free_coherent(asd_ha, seq->edb_arr[i]); 573 kfree(seq->edb_arr); 574 seq->edb_arr = NULL; 575 } 576 577 static void asd_free_escbs(struct asd_ha_struct *asd_ha) 578 { 579 struct asd_seq_data *seq = &asd_ha->seq; 580 int i; 581 582 for (i = 0; i < seq->num_escbs; i++) { 583 if (!list_empty(&seq->escb_arr[i]->list)) 584 list_del_init(&seq->escb_arr[i]->list); 585 586 asd_ascb_free(seq->escb_arr[i]); 587 } 588 kfree(seq->escb_arr); 589 seq->escb_arr = NULL; 590 } 591 592 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha) 593 { 594 int i; 595 596 if (asd_ha->hw_prof.ddb_ext) 597 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext); 598 if (asd_ha->hw_prof.scb_ext) 599 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext); 600 601 if (asd_ha->hw_prof.ddb_bitmap) 602 kfree(asd_ha->hw_prof.ddb_bitmap); 603 asd_ha->hw_prof.ddb_bitmap = NULL; 604 605 for (i = 0; i < ASD_MAX_PHYS; i++) { 606 struct asd_phy *phy = &asd_ha->phys[i]; 607 608 asd_free_coherent(asd_ha, phy->id_frm_tok); 609 } 610 if (asd_ha->seq.escb_arr) 611 asd_free_escbs(asd_ha); 612 if (asd_ha->seq.edb_arr) 613 asd_free_edbs(asd_ha); 614 if (asd_ha->hw_prof.ue.area) { 615 kfree(asd_ha->hw_prof.ue.area); 616 asd_ha->hw_prof.ue.area = NULL; 617 } 618 if (asd_ha->seq.tc_index_array) { 619 kfree(asd_ha->seq.tc_index_array); 620 kfree(asd_ha->seq.tc_index_bitmap); 621 asd_ha->seq.tc_index_array = NULL; 622 asd_ha->seq.tc_index_bitmap = NULL; 623 } 624 if (asd_ha->seq.actual_dl) { 625 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl); 626 asd_ha->seq.actual_dl = NULL; 627 asd_ha->seq.dl = NULL; 628 } 629 if (asd_ha->seq.next_scb.vaddr) { 630 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr, 631 asd_ha->seq.next_scb.dma_handle); 632 asd_ha->seq.next_scb.vaddr = NULL; 633 } 634 dma_pool_destroy(asd_ha->scb_pool); 635 asd_ha->scb_pool = NULL; 636 } 637 638 struct kmem_cache *asd_dma_token_cache; 639 struct kmem_cache *asd_ascb_cache; 640 641 static int asd_create_global_caches(void) 642 { 643 if (!asd_dma_token_cache) { 644 asd_dma_token_cache 645 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token", 646 sizeof(struct asd_dma_tok), 647 0, 648 SLAB_HWCACHE_ALIGN, 649 NULL); 650 if (!asd_dma_token_cache) { 651 asd_printk("couldn't create dma token cache\n"); 652 return -ENOMEM; 653 } 654 } 655 656 if (!asd_ascb_cache) { 657 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb", 658 sizeof(struct asd_ascb), 659 0, 660 SLAB_HWCACHE_ALIGN, 661 NULL); 662 if (!asd_ascb_cache) { 663 asd_printk("couldn't create ascb cache\n"); 664 goto Err; 665 } 666 } 667 668 return 0; 669 Err: 670 kmem_cache_destroy(asd_dma_token_cache); 671 asd_dma_token_cache = NULL; 672 return -ENOMEM; 673 } 674 675 static void asd_destroy_global_caches(void) 676 { 677 if (asd_dma_token_cache) 678 kmem_cache_destroy(asd_dma_token_cache); 679 asd_dma_token_cache = NULL; 680 681 if (asd_ascb_cache) 682 kmem_cache_destroy(asd_ascb_cache); 683 asd_ascb_cache = NULL; 684 } 685 686 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha) 687 { 688 int i; 689 struct asd_sas_phy **sas_phys = 690 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL); 691 struct asd_sas_port **sas_ports = 692 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL); 693 694 if (!sas_phys || !sas_ports) { 695 kfree(sas_phys); 696 kfree(sas_ports); 697 return -ENOMEM; 698 } 699 700 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name; 701 asd_ha->sas_ha.lldd_module = THIS_MODULE; 702 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0]; 703 704 for (i = 0; i < ASD_MAX_PHYS; i++) { 705 sas_phys[i] = &asd_ha->phys[i].sas_phy; 706 sas_ports[i] = &asd_ha->ports[i]; 707 } 708 709 asd_ha->sas_ha.sas_phy = sas_phys; 710 asd_ha->sas_ha.sas_port= sas_ports; 711 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS; 712 713 asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue; 714 asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num; 715 716 return sas_register_ha(&asd_ha->sas_ha); 717 } 718 719 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha) 720 { 721 int err; 722 723 err = sas_unregister_ha(&asd_ha->sas_ha); 724 725 sas_remove_host(asd_ha->sas_ha.core.shost); 726 scsi_remove_host(asd_ha->sas_ha.core.shost); 727 scsi_host_put(asd_ha->sas_ha.core.shost); 728 729 kfree(asd_ha->sas_ha.sas_phy); 730 kfree(asd_ha->sas_ha.sas_port); 731 732 return err; 733 } 734 735 static int __devinit asd_pci_probe(struct pci_dev *dev, 736 const struct pci_device_id *id) 737 { 738 const struct asd_pcidev_struct *asd_dev; 739 unsigned asd_id = (unsigned) id->driver_data; 740 struct asd_ha_struct *asd_ha; 741 struct Scsi_Host *shost; 742 int err; 743 744 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) { 745 asd_printk("wrong driver_data in PCI table\n"); 746 return -ENODEV; 747 } 748 749 if ((err = pci_enable_device(dev))) { 750 asd_printk("couldn't enable device %s\n", pci_name(dev)); 751 return err; 752 } 753 754 pci_set_master(dev); 755 756 err = -ENOMEM; 757 758 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *)); 759 if (!shost) 760 goto Err; 761 762 asd_dev = &asd_pcidev_data[asd_id]; 763 764 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL); 765 if (!asd_ha) { 766 asd_printk("out of memory\n"); 767 goto Err_put; 768 } 769 asd_ha->pcidev = dev; 770 asd_ha->sas_ha.dev = &asd_ha->pcidev->dev; 771 asd_ha->sas_ha.lldd_ha = asd_ha; 772 773 asd_ha->bios_status = FLASH_OK; 774 asd_ha->name = asd_dev->name; 775 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev)); 776 777 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha; 778 asd_ha->sas_ha.core.shost = shost; 779 shost->transportt = aic94xx_transport_template; 780 shost->max_id = ~0; 781 shost->max_lun = ~0; 782 shost->max_cmd_len = 16; 783 784 err = scsi_add_host(shost, &dev->dev); 785 if (err) 786 goto Err_free; 787 788 err = asd_dev->setup(asd_ha); 789 if (err) 790 goto Err_remove; 791 792 err = -ENODEV; 793 if (!pci_set_dma_mask(dev, DMA_64BIT_MASK) 794 && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK)) 795 ; 796 else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK) 797 && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) 798 ; 799 else { 800 asd_printk("no suitable DMA mask for %s\n", pci_name(dev)); 801 goto Err_remove; 802 } 803 804 pci_set_drvdata(dev, asd_ha); 805 806 err = asd_map_ha(asd_ha); 807 if (err) 808 goto Err_remove; 809 810 err = asd_create_ha_caches(asd_ha); 811 if (err) 812 goto Err_unmap; 813 814 err = asd_init_hw(asd_ha); 815 if (err) 816 goto Err_free_cache; 817 818 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled " 819 "phys, flash %s, BIOS %s%d\n", 820 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr), 821 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys, 822 asd_ha->hw_prof.num_phys, 823 asd_ha->hw_prof.flash.present ? "present" : "not present", 824 asd_ha->hw_prof.bios.present ? "build " : "not present", 825 asd_ha->hw_prof.bios.bld); 826 827 shost->can_queue = asd_ha->seq.can_queue; 828 829 if (use_msi) 830 pci_enable_msi(asd_ha->pcidev); 831 832 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED, 833 ASD_DRIVER_NAME, asd_ha); 834 if (err) { 835 asd_printk("couldn't get irq %d for %s\n", 836 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev)); 837 goto Err_irq; 838 } 839 asd_enable_ints(asd_ha); 840 841 err = asd_init_post_escbs(asd_ha); 842 if (err) { 843 asd_printk("couldn't post escbs for %s\n", 844 pci_name(asd_ha->pcidev)); 845 goto Err_escbs; 846 } 847 ASD_DPRINTK("escbs posted\n"); 848 849 err = asd_create_dev_attrs(asd_ha); 850 if (err) 851 goto Err_dev_attrs; 852 853 err = asd_register_sas_ha(asd_ha); 854 if (err) 855 goto Err_reg_sas; 856 857 scsi_scan_host(shost); 858 859 return 0; 860 861 Err_reg_sas: 862 asd_remove_dev_attrs(asd_ha); 863 Err_dev_attrs: 864 Err_escbs: 865 asd_disable_ints(asd_ha); 866 free_irq(dev->irq, asd_ha); 867 Err_irq: 868 if (use_msi) 869 pci_disable_msi(dev); 870 asd_chip_hardrst(asd_ha); 871 Err_free_cache: 872 asd_destroy_ha_caches(asd_ha); 873 Err_unmap: 874 asd_unmap_ha(asd_ha); 875 Err_remove: 876 scsi_remove_host(shost); 877 Err_free: 878 kfree(asd_ha); 879 Err_put: 880 scsi_host_put(shost); 881 Err: 882 pci_disable_device(dev); 883 return err; 884 } 885 886 static void asd_free_queues(struct asd_ha_struct *asd_ha) 887 { 888 unsigned long flags; 889 LIST_HEAD(pending); 890 struct list_head *n, *pos; 891 892 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags); 893 asd_ha->seq.pending = 0; 894 list_splice_init(&asd_ha->seq.pend_q, &pending); 895 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags); 896 897 if (!list_empty(&pending)) 898 ASD_DPRINTK("Uh-oh! Pending is not empty!\n"); 899 900 list_for_each_safe(pos, n, &pending) { 901 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list); 902 /* 903 * Delete unexpired ascb timers. This may happen if we issue 904 * a CONTROL PHY scb to an adapter and rmmod before the scb 905 * times out. Apparently we don't wait for the CONTROL PHY 906 * to complete, so it doesn't matter if we kill the timer. 907 */ 908 del_timer_sync(&ascb->timer); 909 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY); 910 911 list_del_init(pos); 912 ASD_DPRINTK("freeing from pending\n"); 913 asd_ascb_free(ascb); 914 } 915 } 916 917 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha) 918 { 919 u8 phy_mask = asd_ha->hw_prof.enabled_phys; 920 u8 i; 921 922 for_each_phy(phy_mask, phy_mask, i) { 923 asd_turn_led(asd_ha, i, 0); 924 asd_control_led(asd_ha, i, 0); 925 } 926 } 927 928 static void __devexit asd_pci_remove(struct pci_dev *dev) 929 { 930 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev); 931 932 if (!asd_ha) 933 return; 934 935 asd_unregister_sas_ha(asd_ha); 936 937 asd_disable_ints(asd_ha); 938 939 asd_remove_dev_attrs(asd_ha); 940 941 /* XXX more here as needed */ 942 943 free_irq(dev->irq, asd_ha); 944 if (use_msi) 945 pci_disable_msi(asd_ha->pcidev); 946 asd_turn_off_leds(asd_ha); 947 asd_chip_hardrst(asd_ha); 948 asd_free_queues(asd_ha); 949 asd_destroy_ha_caches(asd_ha); 950 asd_unmap_ha(asd_ha); 951 kfree(asd_ha); 952 pci_disable_device(dev); 953 return; 954 } 955 956 static void asd_scan_start(struct Scsi_Host *shost) 957 { 958 struct asd_ha_struct *asd_ha; 959 int err; 960 961 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha; 962 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys); 963 if (err) 964 asd_printk("Couldn't enable phys, err:%d\n", err); 965 } 966 967 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time) 968 { 969 /* give the phy enabling interrupt event time to come in (1s 970 * is empirically about all it takes) */ 971 if (time < HZ) 972 return 0; 973 /* Wait for discovery to finish */ 974 scsi_flush_work(shost); 975 return 1; 976 } 977 978 static ssize_t asd_version_show(struct device_driver *driver, char *buf) 979 { 980 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION); 981 } 982 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL); 983 984 static int asd_create_driver_attrs(struct device_driver *driver) 985 { 986 return driver_create_file(driver, &driver_attr_version); 987 } 988 989 static void asd_remove_driver_attrs(struct device_driver *driver) 990 { 991 driver_remove_file(driver, &driver_attr_version); 992 } 993 994 static struct sas_domain_function_template aic94xx_transport_functions = { 995 .lldd_dev_found = asd_dev_found, 996 .lldd_dev_gone = asd_dev_gone, 997 998 .lldd_execute_task = asd_execute_task, 999 1000 .lldd_abort_task = asd_abort_task, 1001 .lldd_abort_task_set = asd_abort_task_set, 1002 .lldd_clear_aca = asd_clear_aca, 1003 .lldd_clear_task_set = asd_clear_task_set, 1004 .lldd_I_T_nexus_reset = asd_I_T_nexus_reset, 1005 .lldd_lu_reset = asd_lu_reset, 1006 .lldd_query_task = asd_query_task, 1007 1008 .lldd_clear_nexus_port = asd_clear_nexus_port, 1009 .lldd_clear_nexus_ha = asd_clear_nexus_ha, 1010 1011 .lldd_control_phy = asd_control_phy, 1012 }; 1013 1014 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = { 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 = __devexit_p(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