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