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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Aic94xx SAS/SATA driver initialization.4 *5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>7 */8 9#include <linux/module.h>10#include <linux/init.h>11#include <linux/kernel.h>12#include <linux/pci.h>13#include <linux/delay.h>14#include <linux/firmware.h>15#include <linux/slab.h>16 17#include <scsi/sas_ata.h>18#include <scsi/scsi_host.h>19 20#include "aic94xx.h"21#include "aic94xx_reg.h"22#include "aic94xx_hwi.h"23#include "aic94xx_seq.h"24#include "aic94xx_sds.h"25 26/* The format is "version.release.patchlevel" */27#define ASD_DRIVER_VERSION "1.0.3"28#define DRV_NAME "aic94xx"29 30static int use_msi = 0;31module_param_named(use_msi, use_msi, int, S_IRUGO);32MODULE_PARM_DESC(use_msi, "\n"33 "\tEnable(1) or disable(0) using PCI MSI.\n"34 "\tDefault: 0");35 36static struct scsi_transport_template *aic94xx_transport_template;37static int asd_scan_finished(struct Scsi_Host *, unsigned long);38static void asd_scan_start(struct Scsi_Host *);39static const struct attribute_group *asd_sdev_groups[];40 41static const struct scsi_host_template aic94xx_sht = {42 LIBSAS_SHT_BASE43 .scan_finished = asd_scan_finished,44 .scan_start = asd_scan_start,45 .can_queue = 1,46 .sg_tablesize = SG_ALL,47 .track_queue_depth = 1,48 .sdev_groups = asd_sdev_groups,49};50 51static int asd_map_memio(struct asd_ha_struct *asd_ha)52{53 int err, i;54 struct asd_ha_addrspace *io_handle;55 56 asd_ha->iospace = 0;57 for (i = 0; i < 3; i += 2) {58 io_handle = &asd_ha->io_handle[i==0?0:1];59 io_handle->start = pci_resource_start(asd_ha->pcidev, i);60 io_handle->len = pci_resource_len(asd_ha->pcidev, i);61 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);62 err = -ENODEV;63 if (!io_handle->start || !io_handle->len) {64 asd_printk("MBAR%d start or length for %s is 0.\n",65 i==0?0:1, pci_name(asd_ha->pcidev));66 goto Err;67 }68 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);69 if (err) {70 asd_printk("couldn't reserve memory region for %s\n",71 pci_name(asd_ha->pcidev));72 goto Err;73 }74 io_handle->addr = ioremap(io_handle->start, io_handle->len);75 if (!io_handle->addr) {76 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,77 pci_name(asd_ha->pcidev));78 err = -ENOMEM;79 goto Err_unreq;80 }81 }82 83 return 0;84Err_unreq:85 pci_release_region(asd_ha->pcidev, i);86Err:87 if (i > 0) {88 io_handle = &asd_ha->io_handle[0];89 iounmap(io_handle->addr);90 pci_release_region(asd_ha->pcidev, 0);91 }92 return err;93}94 95static void asd_unmap_memio(struct asd_ha_struct *asd_ha)96{97 struct asd_ha_addrspace *io_handle;98 99 io_handle = &asd_ha->io_handle[1];100 iounmap(io_handle->addr);101 pci_release_region(asd_ha->pcidev, 2);102 103 io_handle = &asd_ha->io_handle[0];104 iounmap(io_handle->addr);105 pci_release_region(asd_ha->pcidev, 0);106}107 108static int asd_map_ioport(struct asd_ha_struct *asd_ha)109{110 int i = PCI_IOBAR_OFFSET, err;111 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];112 113 asd_ha->iospace = 1;114 io_handle->start = pci_resource_start(asd_ha->pcidev, i);115 io_handle->len = pci_resource_len(asd_ha->pcidev, i);116 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);117 io_handle->addr = (void __iomem *) io_handle->start;118 if (!io_handle->start || !io_handle->len) {119 asd_printk("couldn't get IO ports for %s\n",120 pci_name(asd_ha->pcidev));121 return -ENODEV;122 }123 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);124 if (err) {125 asd_printk("couldn't reserve io space for %s\n",126 pci_name(asd_ha->pcidev));127 }128 129 return err;130}131 132static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)133{134 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);135}136 137static int asd_map_ha(struct asd_ha_struct *asd_ha)138{139 int err;140 u16 cmd_reg;141 142 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);143 if (err) {144 asd_printk("couldn't read command register of %s\n",145 pci_name(asd_ha->pcidev));146 goto Err;147 }148 149 err = -ENODEV;150 if (cmd_reg & PCI_COMMAND_MEMORY) {151 if ((err = asd_map_memio(asd_ha)))152 goto Err;153 } else if (cmd_reg & PCI_COMMAND_IO) {154 if ((err = asd_map_ioport(asd_ha)))155 goto Err;156 asd_printk("%s ioport mapped -- upgrade your hardware\n",157 pci_name(asd_ha->pcidev));158 } else {159 asd_printk("no proper device access to %s\n",160 pci_name(asd_ha->pcidev));161 goto Err;162 }163 164 return 0;165Err:166 return err;167}168 169static void asd_unmap_ha(struct asd_ha_struct *asd_ha)170{171 if (asd_ha->iospace)172 asd_unmap_ioport(asd_ha);173 else174 asd_unmap_memio(asd_ha);175}176 177static const char *asd_dev_rev[30] = {178 [0] = "A0",179 [1] = "A1",180 [8] = "B0",181};182 183static int asd_common_setup(struct asd_ha_struct *asd_ha)184{185 int err, i;186 187 asd_ha->revision_id = asd_ha->pcidev->revision;188 189 err = -ENODEV;190 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {191 asd_printk("%s is revision %s (%X), which is not supported\n",192 pci_name(asd_ha->pcidev),193 asd_dev_rev[asd_ha->revision_id],194 asd_ha->revision_id);195 goto Err;196 }197 /* Provide some sane default values. */198 asd_ha->hw_prof.max_scbs = 512;199 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;200 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;201 /* All phys are enabled, by default. */202 asd_ha->hw_prof.enabled_phys = 0xFF;203 for (i = 0; i < ASD_MAX_PHYS; i++) {204 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =205 SAS_LINK_RATE_3_0_GBPS;206 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =207 SAS_LINK_RATE_1_5_GBPS;208 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =209 SAS_LINK_RATE_1_5_GBPS;210 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =211 SAS_LINK_RATE_1_5_GBPS;212 }213 214 return 0;215Err:216 return err;217}218 219static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)220{221 int err = asd_common_setup(asd_ha);222 223 if (err)224 return err;225 226 asd_ha->hw_prof.addr_range = 8;227 asd_ha->hw_prof.port_name_base = 0;228 asd_ha->hw_prof.dev_name_base = 8;229 asd_ha->hw_prof.sata_name_base = 16;230 231 return 0;232}233 234static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)235{236 int err = asd_common_setup(asd_ha);237 238 if (err)239 return err;240 241 asd_ha->hw_prof.addr_range = 4;242 asd_ha->hw_prof.port_name_base = 0;243 asd_ha->hw_prof.dev_name_base = 4;244 asd_ha->hw_prof.sata_name_base = 8;245 246 return 0;247}248 249static ssize_t asd_show_dev_rev(struct device *dev,250 struct device_attribute *attr, char *buf)251{252 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);253 return snprintf(buf, PAGE_SIZE, "%s\n",254 asd_dev_rev[asd_ha->revision_id]);255}256static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);257 258static ssize_t asd_show_dev_bios_build(struct device *dev,259 struct device_attribute *attr,char *buf)260{261 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);262 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);263}264static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);265 266static ssize_t asd_show_dev_pcba_sn(struct device *dev,267 struct device_attribute *attr, char *buf)268{269 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);270 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);271}272static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);273 274#define FLASH_CMD_NONE 0x00275#define FLASH_CMD_UPDATE 0x01276#define FLASH_CMD_VERIFY 0x02277 278struct flash_command {279 u8 command[8];280 int code;281};282 283static struct flash_command flash_command_table[] =284{285 {"verify", FLASH_CMD_VERIFY},286 {"update", FLASH_CMD_UPDATE},287 {"", FLASH_CMD_NONE} /* Last entry should be NULL. */288};289 290struct error_bios {291 char *reason;292 int err_code;293};294 295static struct error_bios flash_error_table[] =296{297 {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE},298 {"PCI ID mismatch", FAIL_CHECK_PCI_ID},299 {"Checksum mismatch", FAIL_CHECK_SUM},300 {"Unknown Error", FAIL_UNKNOWN},301 {"Failed to verify.", FAIL_VERIFY},302 {"Failed to reset flash chip.", FAIL_RESET_FLASH},303 {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID},304 {"Failed to erash flash chip.", FAIL_ERASE_FLASH},305 {"Failed to program flash chip.", FAIL_WRITE_FLASH},306 {"Flash in progress", FLASH_IN_PROGRESS},307 {"Image file size Error", FAIL_FILE_SIZE},308 {"Input parameter error", FAIL_PARAMETERS},309 {"Out of memory", FAIL_OUT_MEMORY},310 {"OK", 0} /* Last entry err_code = 0. */311};312 313static ssize_t asd_store_update_bios(struct device *dev,314 struct device_attribute *attr,315 const char *buf, size_t count)316{317 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);318 char *cmd_ptr, *filename_ptr;319 struct bios_file_header header, *hdr_ptr;320 int res, i;321 u32 csum = 0;322 int flash_command = FLASH_CMD_NONE;323 int err = 0;324 325 cmd_ptr = kcalloc(count, 2, GFP_KERNEL);326 327 if (!cmd_ptr) {328 err = FAIL_OUT_MEMORY;329 goto out;330 }331 332 filename_ptr = cmd_ptr + count;333 res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);334 if (res != 2) {335 err = FAIL_PARAMETERS;336 goto out1;337 }338 339 for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {340 if (!memcmp(flash_command_table[i].command,341 cmd_ptr, strlen(cmd_ptr))) {342 flash_command = flash_command_table[i].code;343 break;344 }345 }346 if (flash_command == FLASH_CMD_NONE) {347 err = FAIL_PARAMETERS;348 goto out1;349 }350 351 if (asd_ha->bios_status == FLASH_IN_PROGRESS) {352 err = FLASH_IN_PROGRESS;353 goto out1;354 }355 err = request_firmware(&asd_ha->bios_image,356 filename_ptr,357 &asd_ha->pcidev->dev);358 if (err) {359 asd_printk("Failed to load bios image file %s, error %d\n",360 filename_ptr, err);361 err = FAIL_OPEN_BIOS_FILE;362 goto out1;363 }364 365 hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;366 367 if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||368 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&369 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||370 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {371 372 ASD_DPRINTK("The PCI vendor or device id does not match\n");373 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"374 " pci vendor=%x pci dev=%x\n",375 hdr_ptr->contrl_id.vendor,376 hdr_ptr->contrl_id.device,377 hdr_ptr->contrl_id.sub_vendor,378 hdr_ptr->contrl_id.sub_device,379 asd_ha->pcidev->vendor,380 asd_ha->pcidev->device);381 err = FAIL_CHECK_PCI_ID;382 goto out2;383 }384 385 if (hdr_ptr->filelen != asd_ha->bios_image->size) {386 err = FAIL_FILE_SIZE;387 goto out2;388 }389 390 /* calculate checksum */391 for (i = 0; i < hdr_ptr->filelen; i++)392 csum += asd_ha->bios_image->data[i];393 394 if ((csum & 0x0000ffff) != hdr_ptr->checksum) {395 ASD_DPRINTK("BIOS file checksum mismatch\n");396 err = FAIL_CHECK_SUM;397 goto out2;398 }399 if (flash_command == FLASH_CMD_UPDATE) {400 asd_ha->bios_status = FLASH_IN_PROGRESS;401 err = asd_write_flash_seg(asd_ha,402 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],403 0, hdr_ptr->filelen-sizeof(*hdr_ptr));404 if (!err)405 err = asd_verify_flash_seg(asd_ha,406 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],407 0, hdr_ptr->filelen-sizeof(*hdr_ptr));408 } else {409 asd_ha->bios_status = FLASH_IN_PROGRESS;410 err = asd_verify_flash_seg(asd_ha,411 &asd_ha->bios_image->data[sizeof(header)],412 0, hdr_ptr->filelen-sizeof(header));413 }414 415out2:416 release_firmware(asd_ha->bios_image);417out1:418 kfree(cmd_ptr);419out:420 asd_ha->bios_status = err;421 422 if (!err)423 return count;424 else425 return -err;426}427 428static ssize_t asd_show_update_bios(struct device *dev,429 struct device_attribute *attr, char *buf)430{431 int i;432 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);433 434 for (i = 0; flash_error_table[i].err_code != 0; i++) {435 if (flash_error_table[i].err_code == asd_ha->bios_status)436 break;437 }438 if (asd_ha->bios_status != FLASH_IN_PROGRESS)439 asd_ha->bios_status = FLASH_OK;440 441 return snprintf(buf, PAGE_SIZE, "status=%x %s\n",442 flash_error_table[i].err_code,443 flash_error_table[i].reason);444}445 446static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,447 asd_show_update_bios, asd_store_update_bios);448 449static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)450{451 int err;452 453 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);454 if (err)455 return err;456 457 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);458 if (err)459 goto err_rev;460 461 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);462 if (err)463 goto err_biosb;464 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);465 if (err)466 goto err_update_bios;467 468 return 0;469 470err_update_bios:471 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);472err_biosb:473 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);474err_rev:475 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);476 return err;477}478 479static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)480{481 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);482 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);483 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);484 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);485}486 487/* The first entry, 0, is used for dynamic ids, the rest for devices488 * we know about.489 */490static const struct asd_pcidev_struct {491 const char * name;492 int (*setup)(struct asd_ha_struct *asd_ha);493} asd_pcidev_data[] = {494 /* Id 0 is used for dynamic ids. */495 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",496 .setup = asd_aic9410_setup497 },498 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",499 .setup = asd_aic9410_setup500 },501 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",502 .setup = asd_aic9405_setup503 },504};505 506static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)507{508 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",509 &asd_ha->pcidev->dev,510 sizeof(struct scb),511 8, 0);512 if (!asd_ha->scb_pool) {513 asd_printk("couldn't create scb pool\n");514 return -ENOMEM;515 }516 517 return 0;518}519 520/*521 * asd_free_edbs -- free empty data buffers522 * asd_ha: pointer to host adapter structure523 */524static void asd_free_edbs(struct asd_ha_struct *asd_ha)525{526 struct asd_seq_data *seq = &asd_ha->seq;527 int i;528 529 for (i = 0; i < seq->num_edbs; i++)530 asd_free_coherent(asd_ha, seq->edb_arr[i]);531 kfree(seq->edb_arr);532 seq->edb_arr = NULL;533}534 535static void asd_free_escbs(struct asd_ha_struct *asd_ha)536{537 struct asd_seq_data *seq = &asd_ha->seq;538 int i;539 540 for (i = 0; i < seq->num_escbs; i++) {541 if (!list_empty(&seq->escb_arr[i]->list))542 list_del_init(&seq->escb_arr[i]->list);543 544 asd_ascb_free(seq->escb_arr[i]);545 }546 kfree(seq->escb_arr);547 seq->escb_arr = NULL;548}549 550static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)551{552 int i;553 554 if (asd_ha->hw_prof.ddb_ext)555 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);556 if (asd_ha->hw_prof.scb_ext)557 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);558 559 kfree(asd_ha->hw_prof.ddb_bitmap);560 asd_ha->hw_prof.ddb_bitmap = NULL;561 562 for (i = 0; i < ASD_MAX_PHYS; i++) {563 struct asd_phy *phy = &asd_ha->phys[i];564 565 asd_free_coherent(asd_ha, phy->id_frm_tok);566 }567 if (asd_ha->seq.escb_arr)568 asd_free_escbs(asd_ha);569 if (asd_ha->seq.edb_arr)570 asd_free_edbs(asd_ha);571 if (asd_ha->hw_prof.ue.area) {572 kfree(asd_ha->hw_prof.ue.area);573 asd_ha->hw_prof.ue.area = NULL;574 }575 if (asd_ha->seq.tc_index_array) {576 kfree(asd_ha->seq.tc_index_array);577 kfree(asd_ha->seq.tc_index_bitmap);578 asd_ha->seq.tc_index_array = NULL;579 asd_ha->seq.tc_index_bitmap = NULL;580 }581 if (asd_ha->seq.actual_dl) {582 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);583 asd_ha->seq.actual_dl = NULL;584 asd_ha->seq.dl = NULL;585 }586 if (asd_ha->seq.next_scb.vaddr) {587 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,588 asd_ha->seq.next_scb.dma_handle);589 asd_ha->seq.next_scb.vaddr = NULL;590 }591 dma_pool_destroy(asd_ha->scb_pool);592 asd_ha->scb_pool = NULL;593}594 595struct kmem_cache *asd_dma_token_cache;596struct kmem_cache *asd_ascb_cache;597 598static int asd_create_global_caches(void)599{600 if (!asd_dma_token_cache) {601 asd_dma_token_cache602 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",603 sizeof(struct asd_dma_tok),604 0,605 SLAB_HWCACHE_ALIGN,606 NULL);607 if (!asd_dma_token_cache) {608 asd_printk("couldn't create dma token cache\n");609 return -ENOMEM;610 }611 }612 613 if (!asd_ascb_cache) {614 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",615 sizeof(struct asd_ascb),616 0,617 SLAB_HWCACHE_ALIGN,618 NULL);619 if (!asd_ascb_cache) {620 asd_printk("couldn't create ascb cache\n");621 goto Err;622 }623 }624 625 return 0;626Err:627 kmem_cache_destroy(asd_dma_token_cache);628 asd_dma_token_cache = NULL;629 return -ENOMEM;630}631 632static void asd_destroy_global_caches(void)633{634 kmem_cache_destroy(asd_dma_token_cache);635 asd_dma_token_cache = NULL;636 637 kmem_cache_destroy(asd_ascb_cache);638 asd_ascb_cache = NULL;639}640 641static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)642{643 int i;644 struct asd_sas_phy **sas_phys =645 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);646 struct asd_sas_port **sas_ports =647 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);648 649 if (!sas_phys || !sas_ports) {650 kfree(sas_phys);651 kfree(sas_ports);652 return -ENOMEM;653 }654 655 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;656 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];657 658 for (i = 0; i < ASD_MAX_PHYS; i++) {659 sas_phys[i] = &asd_ha->phys[i].sas_phy;660 sas_ports[i] = &asd_ha->ports[i];661 }662 663 asd_ha->sas_ha.sas_phy = sas_phys;664 asd_ha->sas_ha.sas_port= sas_ports;665 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;666 667 return sas_register_ha(&asd_ha->sas_ha);668}669 670static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)671{672 int err;673 674 err = sas_unregister_ha(&asd_ha->sas_ha);675 676 sas_remove_host(asd_ha->sas_ha.shost);677 scsi_host_put(asd_ha->sas_ha.shost);678 679 kfree(asd_ha->sas_ha.sas_phy);680 kfree(asd_ha->sas_ha.sas_port);681 682 return err;683}684 685static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)686{687 const struct asd_pcidev_struct *asd_dev;688 unsigned asd_id = (unsigned) id->driver_data;689 struct asd_ha_struct *asd_ha;690 struct Scsi_Host *shost;691 int err;692 693 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {694 asd_printk("wrong driver_data in PCI table\n");695 return -ENODEV;696 }697 698 if ((err = pci_enable_device(dev))) {699 asd_printk("couldn't enable device %s\n", pci_name(dev));700 return err;701 }702 703 pci_set_master(dev);704 705 err = -ENOMEM;706 707 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));708 if (!shost)709 goto Err;710 711 asd_dev = &asd_pcidev_data[asd_id];712 713 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);714 if (!asd_ha) {715 asd_printk("out of memory\n");716 goto Err_put;717 }718 asd_ha->pcidev = dev;719 asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;720 asd_ha->sas_ha.lldd_ha = asd_ha;721 722 asd_ha->bios_status = FLASH_OK;723 asd_ha->name = asd_dev->name;724 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));725 726 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;727 asd_ha->sas_ha.shost = shost;728 shost->transportt = aic94xx_transport_template;729 shost->max_id = ~0;730 shost->max_lun = ~0;731 shost->max_cmd_len = 16;732 733 err = scsi_add_host(shost, &dev->dev);734 if (err)735 goto Err_free;736 737 err = asd_dev->setup(asd_ha);738 if (err)739 goto Err_remove;740 741 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64));742 if (err)743 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));744 if (err) {745 err = -ENODEV;746 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));747 goto Err_remove;748 }749 750 pci_set_drvdata(dev, asd_ha);751 752 err = asd_map_ha(asd_ha);753 if (err)754 goto Err_remove;755 756 err = asd_create_ha_caches(asd_ha);757 if (err)758 goto Err_unmap;759 760 err = asd_init_hw(asd_ha);761 if (err)762 goto Err_free_cache;763 764 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "765 "phys, flash %s, BIOS %s%d\n",766 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),767 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,768 asd_ha->hw_prof.num_phys,769 asd_ha->hw_prof.flash.present ? "present" : "not present",770 asd_ha->hw_prof.bios.present ? "build " : "not present",771 asd_ha->hw_prof.bios.bld);772 773 shost->can_queue = asd_ha->seq.can_queue;774 775 if (use_msi)776 pci_enable_msi(asd_ha->pcidev);777 778 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,779 ASD_DRIVER_NAME, asd_ha);780 if (err) {781 asd_printk("couldn't get irq %d for %s\n",782 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));783 goto Err_irq;784 }785 asd_enable_ints(asd_ha);786 787 err = asd_init_post_escbs(asd_ha);788 if (err) {789 asd_printk("couldn't post escbs for %s\n",790 pci_name(asd_ha->pcidev));791 goto Err_escbs;792 }793 ASD_DPRINTK("escbs posted\n");794 795 err = asd_create_dev_attrs(asd_ha);796 if (err)797 goto Err_dev_attrs;798 799 err = asd_register_sas_ha(asd_ha);800 if (err)801 goto Err_reg_sas;802 803 scsi_scan_host(shost);804 805 return 0;806 807Err_reg_sas:808 asd_remove_dev_attrs(asd_ha);809Err_dev_attrs:810Err_escbs:811 asd_disable_ints(asd_ha);812 free_irq(dev->irq, asd_ha);813Err_irq:814 if (use_msi)815 pci_disable_msi(dev);816 asd_chip_hardrst(asd_ha);817Err_free_cache:818 asd_destroy_ha_caches(asd_ha);819Err_unmap:820 asd_unmap_ha(asd_ha);821Err_remove:822 scsi_remove_host(shost);823Err_free:824 kfree(asd_ha);825Err_put:826 scsi_host_put(shost);827Err:828 pci_disable_device(dev);829 return err;830}831 832static void asd_free_queues(struct asd_ha_struct *asd_ha)833{834 unsigned long flags;835 LIST_HEAD(pending);836 struct list_head *n, *pos;837 838 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);839 asd_ha->seq.pending = 0;840 list_splice_init(&asd_ha->seq.pend_q, &pending);841 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);842 843 if (!list_empty(&pending))844 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");845 846 list_for_each_safe(pos, n, &pending) {847 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);848 /*849 * Delete unexpired ascb timers. This may happen if we issue850 * a CONTROL PHY scb to an adapter and rmmod before the scb851 * times out. Apparently we don't wait for the CONTROL PHY852 * to complete, so it doesn't matter if we kill the timer.853 */854 del_timer_sync(&ascb->timer);855 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);856 857 list_del_init(pos);858 ASD_DPRINTK("freeing from pending\n");859 asd_ascb_free(ascb);860 }861}862 863static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)864{865 u8 phy_mask = asd_ha->hw_prof.enabled_phys;866 u8 i;867 868 for_each_phy(phy_mask, phy_mask, i) {869 asd_turn_led(asd_ha, i, 0);870 asd_control_led(asd_ha, i, 0);871 }872}873 874static void asd_pci_remove(struct pci_dev *dev)875{876 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);877 878 if (!asd_ha)879 return;880 881 asd_unregister_sas_ha(asd_ha);882 883 asd_disable_ints(asd_ha);884 885 asd_remove_dev_attrs(asd_ha);886 887 /* XXX more here as needed */888 889 free_irq(dev->irq, asd_ha);890 if (use_msi)891 pci_disable_msi(asd_ha->pcidev);892 asd_turn_off_leds(asd_ha);893 asd_chip_hardrst(asd_ha);894 asd_free_queues(asd_ha);895 asd_destroy_ha_caches(asd_ha);896 asd_unmap_ha(asd_ha);897 kfree(asd_ha);898 pci_disable_device(dev);899 return;900}901 902static void asd_scan_start(struct Scsi_Host *shost)903{904 struct asd_ha_struct *asd_ha;905 int err;906 907 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;908 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);909 if (err)910 asd_printk("Couldn't enable phys, err:%d\n", err);911}912 913static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)914{915 /* give the phy enabling interrupt event time to come in (1s916 * is empirically about all it takes) */917 if (time < HZ)918 return 0;919 /* Wait for discovery to finish */920 sas_drain_work(SHOST_TO_SAS_HA(shost));921 return 1;922}923 924static ssize_t version_show(struct device_driver *driver, char *buf)925{926 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);927}928static DRIVER_ATTR_RO(version);929 930static int asd_create_driver_attrs(struct device_driver *driver)931{932 return driver_create_file(driver, &driver_attr_version);933}934 935static void asd_remove_driver_attrs(struct device_driver *driver)936{937 driver_remove_file(driver, &driver_attr_version);938}939 940static const struct attribute_group *asd_sdev_groups[] = {941 &sas_ata_sdev_attr_group,942 NULL943};944 945static struct sas_domain_function_template aic94xx_transport_functions = {946 .lldd_dev_found = asd_dev_found,947 .lldd_dev_gone = asd_dev_gone,948 949 .lldd_execute_task = asd_execute_task,950 951 .lldd_abort_task = asd_abort_task,952 .lldd_abort_task_set = asd_abort_task_set,953 .lldd_clear_task_set = asd_clear_task_set,954 .lldd_I_T_nexus_reset = asd_I_T_nexus_reset,955 .lldd_lu_reset = asd_lu_reset,956 .lldd_query_task = asd_query_task,957 958 .lldd_clear_nexus_port = asd_clear_nexus_port,959 .lldd_clear_nexus_ha = asd_clear_nexus_ha,960 961 .lldd_control_phy = asd_control_phy,962 963 .lldd_ata_set_dmamode = asd_set_dmamode,964};965 966static const struct pci_device_id aic94xx_pci_table[] = {967 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},968 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},969 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},970 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},971 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},972 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},973 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},974 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},975 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},976 {}977};978 979MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);980 981static struct pci_driver aic94xx_pci_driver = {982 .name = ASD_DRIVER_NAME,983 .id_table = aic94xx_pci_table,984 .probe = asd_pci_probe,985 .remove = asd_pci_remove,986};987 988static int __init aic94xx_init(void)989{990 int err;991 992 993 asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,994 ASD_DRIVER_VERSION);995 996 err = asd_create_global_caches();997 if (err)998 return err;999 1000 aic94xx_transport_template =1001 sas_domain_attach_transport(&aic94xx_transport_functions);1002 if (!aic94xx_transport_template) {1003 err = -ENOMEM;1004 goto out_destroy_caches;1005 }1006 1007 err = pci_register_driver(&aic94xx_pci_driver);1008 if (err)1009 goto out_release_transport;1010 1011 err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);1012 if (err)1013 goto out_unregister_pcidrv;1014 1015 return err;1016 1017 out_unregister_pcidrv:1018 pci_unregister_driver(&aic94xx_pci_driver);1019 out_release_transport:1020 sas_release_transport(aic94xx_transport_template);1021 out_destroy_caches:1022 asd_destroy_global_caches();1023 1024 return err;1025}1026 1027static void __exit aic94xx_exit(void)1028{1029 asd_remove_driver_attrs(&aic94xx_pci_driver.driver);1030 pci_unregister_driver(&aic94xx_pci_driver);1031 sas_release_transport(aic94xx_transport_template);1032 asd_release_firmware();1033 asd_destroy_global_caches();1034 asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,1035 ASD_DRIVER_VERSION);1036}1037 1038module_init(aic94xx_init);1039module_exit(aic94xx_exit);1040 1041MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");1042MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);1043MODULE_LICENSE("GPL v2");1044MODULE_VERSION(ASD_DRIVER_VERSION);1045