diff options
Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_init.c')
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_init.c | 1054 |
1 files changed, 1054 insertions, 0 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c new file mode 100644 index 000000000..954d0c5ae --- /dev/null +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -0,0 +1,1054 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Aic94xx SAS/SATA driver initialization. + * + * Copyright (C) 2005 Adaptec, Inc. All rights reserved. + * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com> + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/firmware.h> +#include <linux/slab.h> + +#include <scsi/scsi_host.h> + +#include "aic94xx.h" +#include "aic94xx_reg.h" +#include "aic94xx_hwi.h" +#include "aic94xx_seq.h" +#include "aic94xx_sds.h" + +/* The format is "version.release.patchlevel" */ +#define ASD_DRIVER_VERSION "1.0.3" + +static int use_msi = 0; +module_param_named(use_msi, use_msi, int, S_IRUGO); +MODULE_PARM_DESC(use_msi, "\n" + "\tEnable(1) or disable(0) using PCI MSI.\n" + "\tDefault: 0"); + +static struct scsi_transport_template *aic94xx_transport_template; +static int asd_scan_finished(struct Scsi_Host *, unsigned long); +static void asd_scan_start(struct Scsi_Host *); + +static struct scsi_host_template aic94xx_sht = { + .module = THIS_MODULE, + /* .name is initialized */ + .name = "aic94xx", + .queuecommand = sas_queuecommand, + .dma_need_drain = ata_scsi_dma_need_drain, + .target_alloc = sas_target_alloc, + .slave_configure = sas_slave_configure, + .scan_finished = asd_scan_finished, + .scan_start = asd_scan_start, + .change_queue_depth = sas_change_queue_depth, + .bios_param = sas_bios_param, + .can_queue = 1, + .this_id = -1, + .sg_tablesize = SG_ALL, + .max_sectors = SCSI_DEFAULT_MAX_SECTORS, + .eh_device_reset_handler = sas_eh_device_reset_handler, + .eh_target_reset_handler = sas_eh_target_reset_handler, + .slave_alloc = sas_slave_alloc, + .target_destroy = sas_target_destroy, + .ioctl = sas_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = sas_ioctl, +#endif + .track_queue_depth = 1, +}; + +static int asd_map_memio(struct asd_ha_struct *asd_ha) +{ + int err, i; + struct asd_ha_addrspace *io_handle; + + asd_ha->iospace = 0; + for (i = 0; i < 3; i += 2) { + io_handle = &asd_ha->io_handle[i==0?0:1]; + io_handle->start = pci_resource_start(asd_ha->pcidev, i); + io_handle->len = pci_resource_len(asd_ha->pcidev, i); + io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); + err = -ENODEV; + if (!io_handle->start || !io_handle->len) { + asd_printk("MBAR%d start or length for %s is 0.\n", + i==0?0:1, pci_name(asd_ha->pcidev)); + goto Err; + } + err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); + if (err) { + asd_printk("couldn't reserve memory region for %s\n", + pci_name(asd_ha->pcidev)); + goto Err; + } + io_handle->addr = ioremap(io_handle->start, io_handle->len); + if (!io_handle->addr) { + asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1, + pci_name(asd_ha->pcidev)); + err = -ENOMEM; + goto Err_unreq; + } + } + + return 0; +Err_unreq: + pci_release_region(asd_ha->pcidev, i); +Err: + if (i > 0) { + io_handle = &asd_ha->io_handle[0]; + iounmap(io_handle->addr); + pci_release_region(asd_ha->pcidev, 0); + } + return err; +} + +static void asd_unmap_memio(struct asd_ha_struct *asd_ha) +{ + struct asd_ha_addrspace *io_handle; + + io_handle = &asd_ha->io_handle[1]; + iounmap(io_handle->addr); + pci_release_region(asd_ha->pcidev, 2); + + io_handle = &asd_ha->io_handle[0]; + iounmap(io_handle->addr); + pci_release_region(asd_ha->pcidev, 0); +} + +static int asd_map_ioport(struct asd_ha_struct *asd_ha) +{ + int i = PCI_IOBAR_OFFSET, err; + struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0]; + + asd_ha->iospace = 1; + io_handle->start = pci_resource_start(asd_ha->pcidev, i); + io_handle->len = pci_resource_len(asd_ha->pcidev, i); + io_handle->flags = pci_resource_flags(asd_ha->pcidev, i); + io_handle->addr = (void __iomem *) io_handle->start; + if (!io_handle->start || !io_handle->len) { + asd_printk("couldn't get IO ports for %s\n", + pci_name(asd_ha->pcidev)); + return -ENODEV; + } + err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME); + if (err) { + asd_printk("couldn't reserve io space for %s\n", + pci_name(asd_ha->pcidev)); + } + + return err; +} + +static void asd_unmap_ioport(struct asd_ha_struct *asd_ha) +{ + pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET); +} + +static int asd_map_ha(struct asd_ha_struct *asd_ha) +{ + int err; + u16 cmd_reg; + + err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg); + if (err) { + asd_printk("couldn't read command register of %s\n", + pci_name(asd_ha->pcidev)); + goto Err; + } + + err = -ENODEV; + if (cmd_reg & PCI_COMMAND_MEMORY) { + if ((err = asd_map_memio(asd_ha))) + goto Err; + } else if (cmd_reg & PCI_COMMAND_IO) { + if ((err = asd_map_ioport(asd_ha))) + goto Err; + asd_printk("%s ioport mapped -- upgrade your hardware\n", + pci_name(asd_ha->pcidev)); + } else { + asd_printk("no proper device access to %s\n", + pci_name(asd_ha->pcidev)); + goto Err; + } + + return 0; +Err: + return err; +} + +static void asd_unmap_ha(struct asd_ha_struct *asd_ha) +{ + if (asd_ha->iospace) + asd_unmap_ioport(asd_ha); + else + asd_unmap_memio(asd_ha); +} + +static const char *asd_dev_rev[30] = { + [0] = "A0", + [1] = "A1", + [8] = "B0", +}; + +static int asd_common_setup(struct asd_ha_struct *asd_ha) +{ + int err, i; + + asd_ha->revision_id = asd_ha->pcidev->revision; + + err = -ENODEV; + if (asd_ha->revision_id < AIC9410_DEV_REV_B0) { + asd_printk("%s is revision %s (%X), which is not supported\n", + pci_name(asd_ha->pcidev), + asd_dev_rev[asd_ha->revision_id], + asd_ha->revision_id); + goto Err; + } + /* Provide some sane default values. */ + asd_ha->hw_prof.max_scbs = 512; + asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS; + asd_ha->hw_prof.num_phys = ASD_MAX_PHYS; + /* All phys are enabled, by default. */ + asd_ha->hw_prof.enabled_phys = 0xFF; + for (i = 0; i < ASD_MAX_PHYS; i++) { + asd_ha->hw_prof.phy_desc[i].max_sas_lrate = + SAS_LINK_RATE_3_0_GBPS; + asd_ha->hw_prof.phy_desc[i].min_sas_lrate = + SAS_LINK_RATE_1_5_GBPS; + asd_ha->hw_prof.phy_desc[i].max_sata_lrate = + SAS_LINK_RATE_1_5_GBPS; + asd_ha->hw_prof.phy_desc[i].min_sata_lrate = + SAS_LINK_RATE_1_5_GBPS; + } + + return 0; +Err: + return err; +} + +static int asd_aic9410_setup(struct asd_ha_struct *asd_ha) +{ + int err = asd_common_setup(asd_ha); + + if (err) + return err; + + asd_ha->hw_prof.addr_range = 8; + asd_ha->hw_prof.port_name_base = 0; + asd_ha->hw_prof.dev_name_base = 8; + asd_ha->hw_prof.sata_name_base = 16; + + return 0; +} + +static int asd_aic9405_setup(struct asd_ha_struct *asd_ha) +{ + int err = asd_common_setup(asd_ha); + + if (err) + return err; + + asd_ha->hw_prof.addr_range = 4; + asd_ha->hw_prof.port_name_base = 0; + asd_ha->hw_prof.dev_name_base = 4; + asd_ha->hw_prof.sata_name_base = 8; + + return 0; +} + +static ssize_t asd_show_dev_rev(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); + return snprintf(buf, PAGE_SIZE, "%s\n", + asd_dev_rev[asd_ha->revision_id]); +} +static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL); + +static ssize_t asd_show_dev_bios_build(struct device *dev, + struct device_attribute *attr,char *buf) +{ + struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); + return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld); +} +static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL); + +static ssize_t asd_show_dev_pcba_sn(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); + return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn); +} +static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL); + +#define FLASH_CMD_NONE 0x00 +#define FLASH_CMD_UPDATE 0x01 +#define FLASH_CMD_VERIFY 0x02 + +struct flash_command { + u8 command[8]; + int code; +}; + +static struct flash_command flash_command_table[] = +{ + {"verify", FLASH_CMD_VERIFY}, + {"update", FLASH_CMD_UPDATE}, + {"", FLASH_CMD_NONE} /* Last entry should be NULL. */ +}; + +struct error_bios { + char *reason; + int err_code; +}; + +static struct error_bios flash_error_table[] = +{ + {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE}, + {"PCI ID mismatch", FAIL_CHECK_PCI_ID}, + {"Checksum mismatch", FAIL_CHECK_SUM}, + {"Unknown Error", FAIL_UNKNOWN}, + {"Failed to verify.", FAIL_VERIFY}, + {"Failed to reset flash chip.", FAIL_RESET_FLASH}, + {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID}, + {"Failed to erash flash chip.", FAIL_ERASE_FLASH}, + {"Failed to program flash chip.", FAIL_WRITE_FLASH}, + {"Flash in progress", FLASH_IN_PROGRESS}, + {"Image file size Error", FAIL_FILE_SIZE}, + {"Input parameter error", FAIL_PARAMETERS}, + {"Out of memory", FAIL_OUT_MEMORY}, + {"OK", 0} /* Last entry err_code = 0. */ +}; + +static ssize_t asd_store_update_bios(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); + char *cmd_ptr, *filename_ptr; + struct bios_file_header header, *hdr_ptr; + int res, i; + u32 csum = 0; + int flash_command = FLASH_CMD_NONE; + int err = 0; + + cmd_ptr = kcalloc(count, 2, GFP_KERNEL); + + if (!cmd_ptr) { + err = FAIL_OUT_MEMORY; + goto out; + } + + filename_ptr = cmd_ptr + count; + res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr); + if (res != 2) { + err = FAIL_PARAMETERS; + goto out1; + } + + for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) { + if (!memcmp(flash_command_table[i].command, + cmd_ptr, strlen(cmd_ptr))) { + flash_command = flash_command_table[i].code; + break; + } + } + if (flash_command == FLASH_CMD_NONE) { + err = FAIL_PARAMETERS; + goto out1; + } + + if (asd_ha->bios_status == FLASH_IN_PROGRESS) { + err = FLASH_IN_PROGRESS; + goto out1; + } + err = request_firmware(&asd_ha->bios_image, + filename_ptr, + &asd_ha->pcidev->dev); + if (err) { + asd_printk("Failed to load bios image file %s, error %d\n", + filename_ptr, err); + err = FAIL_OPEN_BIOS_FILE; + goto out1; + } + + hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data; + + if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor || + hdr_ptr->contrl_id.device != asd_ha->pcidev->device) && + (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor || + hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) { + + ASD_DPRINTK("The PCI vendor or device id does not match\n"); + ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x" + " pci vendor=%x pci dev=%x\n", + hdr_ptr->contrl_id.vendor, + hdr_ptr->contrl_id.device, + hdr_ptr->contrl_id.sub_vendor, + hdr_ptr->contrl_id.sub_device, + asd_ha->pcidev->vendor, + asd_ha->pcidev->device); + err = FAIL_CHECK_PCI_ID; + goto out2; + } + + if (hdr_ptr->filelen != asd_ha->bios_image->size) { + err = FAIL_FILE_SIZE; + goto out2; + } + + /* calculate checksum */ + for (i = 0; i < hdr_ptr->filelen; i++) + csum += asd_ha->bios_image->data[i]; + + if ((csum & 0x0000ffff) != hdr_ptr->checksum) { + ASD_DPRINTK("BIOS file checksum mismatch\n"); + err = FAIL_CHECK_SUM; + goto out2; + } + if (flash_command == FLASH_CMD_UPDATE) { + asd_ha->bios_status = FLASH_IN_PROGRESS; + err = asd_write_flash_seg(asd_ha, + &asd_ha->bios_image->data[sizeof(*hdr_ptr)], + 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); + if (!err) + err = asd_verify_flash_seg(asd_ha, + &asd_ha->bios_image->data[sizeof(*hdr_ptr)], + 0, hdr_ptr->filelen-sizeof(*hdr_ptr)); + } else { + asd_ha->bios_status = FLASH_IN_PROGRESS; + err = asd_verify_flash_seg(asd_ha, + &asd_ha->bios_image->data[sizeof(header)], + 0, hdr_ptr->filelen-sizeof(header)); + } + +out2: + release_firmware(asd_ha->bios_image); +out1: + kfree(cmd_ptr); +out: + asd_ha->bios_status = err; + + if (!err) + return count; + else + return -err; +} + +static ssize_t asd_show_update_bios(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i; + struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev); + + for (i = 0; flash_error_table[i].err_code != 0; i++) { + if (flash_error_table[i].err_code == asd_ha->bios_status) + break; + } + if (asd_ha->bios_status != FLASH_IN_PROGRESS) + asd_ha->bios_status = FLASH_OK; + + return snprintf(buf, PAGE_SIZE, "status=%x %s\n", + flash_error_table[i].err_code, + flash_error_table[i].reason); +} + +static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR, + asd_show_update_bios, asd_store_update_bios); + +static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha) +{ + int err; + + err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); + if (err) + return err; + + err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); + if (err) + goto err_rev; + + err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); + if (err) + goto err_biosb; + err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); + if (err) + goto err_update_bios; + + return 0; + +err_update_bios: + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); +err_biosb: + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); +err_rev: + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); + return err; +} + +static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha) +{ + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision); + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build); + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn); + device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios); +} + +/* The first entry, 0, is used for dynamic ids, the rest for devices + * we know about. + */ +static const struct asd_pcidev_struct { + const char * name; + int (*setup)(struct asd_ha_struct *asd_ha); +} asd_pcidev_data[] = { + /* Id 0 is used for dynamic ids. */ + { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter", + .setup = asd_aic9410_setup + }, + { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter", + .setup = asd_aic9410_setup + }, + { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter", + .setup = asd_aic9405_setup + }, +}; + +static int asd_create_ha_caches(struct asd_ha_struct *asd_ha) +{ + asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool", + &asd_ha->pcidev->dev, + sizeof(struct scb), + 8, 0); + if (!asd_ha->scb_pool) { + asd_printk("couldn't create scb pool\n"); + return -ENOMEM; + } + + return 0; +} + +/* + * asd_free_edbs -- free empty data buffers + * asd_ha: pointer to host adapter structure + */ +static void asd_free_edbs(struct asd_ha_struct *asd_ha) +{ + struct asd_seq_data *seq = &asd_ha->seq; + int i; + + for (i = 0; i < seq->num_edbs; i++) + asd_free_coherent(asd_ha, seq->edb_arr[i]); + kfree(seq->edb_arr); + seq->edb_arr = NULL; +} + +static void asd_free_escbs(struct asd_ha_struct *asd_ha) +{ + struct asd_seq_data *seq = &asd_ha->seq; + int i; + + for (i = 0; i < seq->num_escbs; i++) { + if (!list_empty(&seq->escb_arr[i]->list)) + list_del_init(&seq->escb_arr[i]->list); + + asd_ascb_free(seq->escb_arr[i]); + } + kfree(seq->escb_arr); + seq->escb_arr = NULL; +} + +static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha) +{ + int i; + + if (asd_ha->hw_prof.ddb_ext) + asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext); + if (asd_ha->hw_prof.scb_ext) + asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext); + + kfree(asd_ha->hw_prof.ddb_bitmap); + asd_ha->hw_prof.ddb_bitmap = NULL; + + for (i = 0; i < ASD_MAX_PHYS; i++) { + struct asd_phy *phy = &asd_ha->phys[i]; + + asd_free_coherent(asd_ha, phy->id_frm_tok); + } + if (asd_ha->seq.escb_arr) + asd_free_escbs(asd_ha); + if (asd_ha->seq.edb_arr) + asd_free_edbs(asd_ha); + if (asd_ha->hw_prof.ue.area) { + kfree(asd_ha->hw_prof.ue.area); + asd_ha->hw_prof.ue.area = NULL; + } + if (asd_ha->seq.tc_index_array) { + kfree(asd_ha->seq.tc_index_array); + kfree(asd_ha->seq.tc_index_bitmap); + asd_ha->seq.tc_index_array = NULL; + asd_ha->seq.tc_index_bitmap = NULL; + } + if (asd_ha->seq.actual_dl) { + asd_free_coherent(asd_ha, asd_ha->seq.actual_dl); + asd_ha->seq.actual_dl = NULL; + asd_ha->seq.dl = NULL; + } + if (asd_ha->seq.next_scb.vaddr) { + dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr, + asd_ha->seq.next_scb.dma_handle); + asd_ha->seq.next_scb.vaddr = NULL; + } + dma_pool_destroy(asd_ha->scb_pool); + asd_ha->scb_pool = NULL; +} + +struct kmem_cache *asd_dma_token_cache; +struct kmem_cache *asd_ascb_cache; + +static int asd_create_global_caches(void) +{ + if (!asd_dma_token_cache) { + asd_dma_token_cache + = kmem_cache_create(ASD_DRIVER_NAME "_dma_token", + sizeof(struct asd_dma_tok), + 0, + SLAB_HWCACHE_ALIGN, + NULL); + if (!asd_dma_token_cache) { + asd_printk("couldn't create dma token cache\n"); + return -ENOMEM; + } + } + + if (!asd_ascb_cache) { + asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb", + sizeof(struct asd_ascb), + 0, + SLAB_HWCACHE_ALIGN, + NULL); + if (!asd_ascb_cache) { + asd_printk("couldn't create ascb cache\n"); + goto Err; + } + } + + return 0; +Err: + kmem_cache_destroy(asd_dma_token_cache); + asd_dma_token_cache = NULL; + return -ENOMEM; +} + +static void asd_destroy_global_caches(void) +{ + kmem_cache_destroy(asd_dma_token_cache); + asd_dma_token_cache = NULL; + + kmem_cache_destroy(asd_ascb_cache); + asd_ascb_cache = NULL; +} + +static int asd_register_sas_ha(struct asd_ha_struct *asd_ha) +{ + int i; + struct asd_sas_phy **sas_phys = + kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL); + struct asd_sas_port **sas_ports = + kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL); + + if (!sas_phys || !sas_ports) { + kfree(sas_phys); + kfree(sas_ports); + return -ENOMEM; + } + + asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name; + asd_ha->sas_ha.lldd_module = THIS_MODULE; + asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0]; + + for (i = 0; i < ASD_MAX_PHYS; i++) { + sas_phys[i] = &asd_ha->phys[i].sas_phy; + sas_ports[i] = &asd_ha->ports[i]; + } + + asd_ha->sas_ha.sas_phy = sas_phys; + asd_ha->sas_ha.sas_port= sas_ports; + asd_ha->sas_ha.num_phys= ASD_MAX_PHYS; + + return sas_register_ha(&asd_ha->sas_ha); +} + +static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha) +{ + int err; + + err = sas_unregister_ha(&asd_ha->sas_ha); + + sas_remove_host(asd_ha->sas_ha.core.shost); + scsi_host_put(asd_ha->sas_ha.core.shost); + + kfree(asd_ha->sas_ha.sas_phy); + kfree(asd_ha->sas_ha.sas_port); + + return err; +} + +static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + const struct asd_pcidev_struct *asd_dev; + unsigned asd_id = (unsigned) id->driver_data; + struct asd_ha_struct *asd_ha; + struct Scsi_Host *shost; + int err; + + if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) { + asd_printk("wrong driver_data in PCI table\n"); + return -ENODEV; + } + + if ((err = pci_enable_device(dev))) { + asd_printk("couldn't enable device %s\n", pci_name(dev)); + return err; + } + + pci_set_master(dev); + + err = -ENOMEM; + + shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *)); + if (!shost) + goto Err; + + asd_dev = &asd_pcidev_data[asd_id]; + + asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL); + if (!asd_ha) { + asd_printk("out of memory\n"); + goto Err_put; + } + asd_ha->pcidev = dev; + asd_ha->sas_ha.dev = &asd_ha->pcidev->dev; + asd_ha->sas_ha.lldd_ha = asd_ha; + + asd_ha->bios_status = FLASH_OK; + asd_ha->name = asd_dev->name; + asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev)); + + SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha; + asd_ha->sas_ha.core.shost = shost; + shost->transportt = aic94xx_transport_template; + shost->max_id = ~0; + shost->max_lun = ~0; + shost->max_cmd_len = 16; + + err = scsi_add_host(shost, &dev->dev); + if (err) + goto Err_free; + + err = asd_dev->setup(asd_ha); + if (err) + goto Err_remove; + + err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64)); + if (err) + err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); + if (err) { + err = -ENODEV; + asd_printk("no suitable DMA mask for %s\n", pci_name(dev)); + goto Err_remove; + } + + pci_set_drvdata(dev, asd_ha); + + err = asd_map_ha(asd_ha); + if (err) + goto Err_remove; + + err = asd_create_ha_caches(asd_ha); + if (err) + goto Err_unmap; + + err = asd_init_hw(asd_ha); + if (err) + goto Err_free_cache; + + asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled " + "phys, flash %s, BIOS %s%d\n", + pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr), + asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys, + asd_ha->hw_prof.num_phys, + asd_ha->hw_prof.flash.present ? "present" : "not present", + asd_ha->hw_prof.bios.present ? "build " : "not present", + asd_ha->hw_prof.bios.bld); + + shost->can_queue = asd_ha->seq.can_queue; + + if (use_msi) + pci_enable_msi(asd_ha->pcidev); + + err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED, + ASD_DRIVER_NAME, asd_ha); + if (err) { + asd_printk("couldn't get irq %d for %s\n", + asd_ha->pcidev->irq, pci_name(asd_ha->pcidev)); + goto Err_irq; + } + asd_enable_ints(asd_ha); + + err = asd_init_post_escbs(asd_ha); + if (err) { + asd_printk("couldn't post escbs for %s\n", + pci_name(asd_ha->pcidev)); + goto Err_escbs; + } + ASD_DPRINTK("escbs posted\n"); + + err = asd_create_dev_attrs(asd_ha); + if (err) + goto Err_dev_attrs; + + err = asd_register_sas_ha(asd_ha); + if (err) + goto Err_reg_sas; + + scsi_scan_host(shost); + + return 0; + +Err_reg_sas: + asd_remove_dev_attrs(asd_ha); +Err_dev_attrs: +Err_escbs: + asd_disable_ints(asd_ha); + free_irq(dev->irq, asd_ha); +Err_irq: + if (use_msi) + pci_disable_msi(dev); + asd_chip_hardrst(asd_ha); +Err_free_cache: + asd_destroy_ha_caches(asd_ha); +Err_unmap: + asd_unmap_ha(asd_ha); +Err_remove: + scsi_remove_host(shost); +Err_free: + kfree(asd_ha); +Err_put: + scsi_host_put(shost); +Err: + pci_disable_device(dev); + return err; +} + +static void asd_free_queues(struct asd_ha_struct *asd_ha) +{ + unsigned long flags; + LIST_HEAD(pending); + struct list_head *n, *pos; + + spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags); + asd_ha->seq.pending = 0; + list_splice_init(&asd_ha->seq.pend_q, &pending); + spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags); + + if (!list_empty(&pending)) + ASD_DPRINTK("Uh-oh! Pending is not empty!\n"); + + list_for_each_safe(pos, n, &pending) { + struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list); + /* + * Delete unexpired ascb timers. This may happen if we issue + * a CONTROL PHY scb to an adapter and rmmod before the scb + * times out. Apparently we don't wait for the CONTROL PHY + * to complete, so it doesn't matter if we kill the timer. + */ + del_timer_sync(&ascb->timer); + WARN_ON(ascb->scb->header.opcode != CONTROL_PHY); + + list_del_init(pos); + ASD_DPRINTK("freeing from pending\n"); + asd_ascb_free(ascb); + } +} + +static void asd_turn_off_leds(struct asd_ha_struct *asd_ha) +{ + u8 phy_mask = asd_ha->hw_prof.enabled_phys; + u8 i; + + for_each_phy(phy_mask, phy_mask, i) { + asd_turn_led(asd_ha, i, 0); + asd_control_led(asd_ha, i, 0); + } +} + +static void asd_pci_remove(struct pci_dev *dev) +{ + struct asd_ha_struct *asd_ha = pci_get_drvdata(dev); + + if (!asd_ha) + return; + + asd_unregister_sas_ha(asd_ha); + + asd_disable_ints(asd_ha); + + asd_remove_dev_attrs(asd_ha); + + /* XXX more here as needed */ + + free_irq(dev->irq, asd_ha); + if (use_msi) + pci_disable_msi(asd_ha->pcidev); + asd_turn_off_leds(asd_ha); + asd_chip_hardrst(asd_ha); + asd_free_queues(asd_ha); + asd_destroy_ha_caches(asd_ha); + asd_unmap_ha(asd_ha); + kfree(asd_ha); + pci_disable_device(dev); + return; +} + +static void asd_scan_start(struct Scsi_Host *shost) +{ + struct asd_ha_struct *asd_ha; + int err; + + asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha; + err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys); + if (err) + asd_printk("Couldn't enable phys, err:%d\n", err); +} + +static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time) +{ + /* give the phy enabling interrupt event time to come in (1s + * is empirically about all it takes) */ + if (time < HZ) + return 0; + /* Wait for discovery to finish */ + sas_drain_work(SHOST_TO_SAS_HA(shost)); + return 1; +} + +static ssize_t version_show(struct device_driver *driver, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION); +} +static DRIVER_ATTR_RO(version); + +static int asd_create_driver_attrs(struct device_driver *driver) +{ + return driver_create_file(driver, &driver_attr_version); +} + +static void asd_remove_driver_attrs(struct device_driver *driver) +{ + driver_remove_file(driver, &driver_attr_version); +} + +static struct sas_domain_function_template aic94xx_transport_functions = { + .lldd_dev_found = asd_dev_found, + .lldd_dev_gone = asd_dev_gone, + + .lldd_execute_task = asd_execute_task, + + .lldd_abort_task = asd_abort_task, + .lldd_abort_task_set = asd_abort_task_set, + .lldd_clear_task_set = asd_clear_task_set, + .lldd_I_T_nexus_reset = asd_I_T_nexus_reset, + .lldd_lu_reset = asd_lu_reset, + .lldd_query_task = asd_query_task, + + .lldd_clear_nexus_port = asd_clear_nexus_port, + .lldd_clear_nexus_ha = asd_clear_nexus_ha, + + .lldd_control_phy = asd_control_phy, + + .lldd_ata_set_dmamode = asd_set_dmamode, +}; + +static const struct pci_device_id aic94xx_pci_table[] = { + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2}, + {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2}, + {} +}; + +MODULE_DEVICE_TABLE(pci, aic94xx_pci_table); + +static struct pci_driver aic94xx_pci_driver = { + .name = ASD_DRIVER_NAME, + .id_table = aic94xx_pci_table, + .probe = asd_pci_probe, + .remove = asd_pci_remove, +}; + +static int __init aic94xx_init(void) +{ + int err; + + + asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION, + ASD_DRIVER_VERSION); + + err = asd_create_global_caches(); + if (err) + return err; + + aic94xx_transport_template = + sas_domain_attach_transport(&aic94xx_transport_functions); + if (!aic94xx_transport_template) { + err = -ENOMEM; + goto out_destroy_caches; + } + + err = pci_register_driver(&aic94xx_pci_driver); + if (err) + goto out_release_transport; + + err = asd_create_driver_attrs(&aic94xx_pci_driver.driver); + if (err) + goto out_unregister_pcidrv; + + return err; + + out_unregister_pcidrv: + pci_unregister_driver(&aic94xx_pci_driver); + out_release_transport: + sas_release_transport(aic94xx_transport_template); + out_destroy_caches: + asd_destroy_global_caches(); + + return err; +} + +static void __exit aic94xx_exit(void) +{ + asd_remove_driver_attrs(&aic94xx_pci_driver.driver); + pci_unregister_driver(&aic94xx_pci_driver); + sas_release_transport(aic94xx_transport_template); + asd_release_firmware(); + asd_destroy_global_caches(); + asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION, + ASD_DRIVER_VERSION); +} + +module_init(aic94xx_init); +module_exit(aic94xx_exit); + +MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>"); +MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION); +MODULE_LICENSE("GPL v2"); +MODULE_VERSION(ASD_DRIVER_VERSION); |