linit.c

linux-2.6.15.6

		.name = "vendor",
		.mode = S_IRUGO,
	},
	.show = aac_show_vendor,
};
static struct class_device_attribute aac_kernel_version = {
	.attr = {
		.name = "hba_kernel_version",
		.mode = S_IRUGO,
	},
	.show = aac_show_kernel_version,
};
static struct class_device_attribute aac_monitor_version = {
	.attr = {
		.name = "hba_monitor_version",
		.mode = S_IRUGO,
	},
	.show = aac_show_monitor_version,
};
static struct class_device_attribute aac_bios_version = {
	.attr = {
		.name = "hba_bios_version",
		.mode = S_IRUGO,
	},
	.show = aac_show_bios_version,
};
static struct class_device_attribute aac_serial_number = {
	.attr = {
		.name = "serial_number",
		.mode = S_IRUGO,
	},
	.show = aac_show_serial_number,
};

static struct class_device_attribute *aac_attrs[] = {
	&aac_model,
	&aac_vendor,
	&aac_kernel_version,
	&aac_monitor_version,
	&aac_bios_version,
	&aac_serial_number,
	NULL
};


static struct file_operations aac_cfg_fops = {
	.owner		= THIS_MODULE,
	.ioctl		= aac_cfg_ioctl,
#ifdef CONFIG_COMPAT
	.compat_ioctl   = aac_compat_cfg_ioctl,
#endif
	.open		= aac_cfg_open,
};

static struct scsi_host_template aac_driver_template = {
	.module				= THIS_MODULE,
	.name           		= "AAC",
	.proc_name			= AAC_DRIVERNAME,
	.info           		= aac_info,
	.ioctl          		= aac_ioctl,
#ifdef CONFIG_COMPAT
	.compat_ioctl			= aac_compat_ioctl,
#endif
	.queuecommand   		= aac_queuecommand,
	.bios_param     		= aac_biosparm,	
	.shost_attrs			= aac_attrs,
	.slave_configure		= aac_slave_configure,
	.eh_host_reset_handler		= aac_eh_reset,
	.can_queue      		= AAC_NUM_IO_FIB,	
	.this_id        		= MAXIMUM_NUM_CONTAINERS,
	.sg_tablesize   		= 16,
	.max_sectors    		= 128,
#if (AAC_NUM_IO_FIB > 256)
	.cmd_per_lun			= 256,
#else		
	.cmd_per_lun    		= AAC_NUM_IO_FIB, 
#endif	
	.use_clustering			= ENABLE_CLUSTERING,
};


static int __devinit aac_probe_one(struct pci_dev *pdev,
		const struct pci_device_id *id)
{
	unsigned index = id->driver_data;
	struct Scsi_Host *shost;
	struct aac_dev *aac;
	struct list_head *insert = &aac_devices;
	int error = -ENODEV;
	int unique_id = 0;

	list_for_each_entry(aac, &aac_devices, entry) {
		if (aac->id > unique_id)
			break;
		insert = &aac->entry;
		unique_id++;
	}

	error = pci_enable_device(pdev);
	if (error)
		goto out;

	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) || 
			pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
		goto out;
	/*
	 * If the quirk31 bit is set, the adapter needs adapter
	 * to driver communication memory to be allocated below 2gig
	 */
	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) 
		if (pci_set_dma_mask(pdev, 0x7FFFFFFFULL) ||
				pci_set_consistent_dma_mask(pdev, 0x7FFFFFFFULL))
			goto out;
	
	pci_set_master(pdev);

	shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
	if (!shost)
		goto out_disable_pdev;

	shost->irq = pdev->irq;
	shost->base = pci_resource_start(pdev, 0);
	shost->unique_id = unique_id;
	shost->max_cmd_len = 16;

	aac = (struct aac_dev *)shost->hostdata;
	aac->scsi_host_ptr = shost;	
	aac->pdev = pdev;
	aac->name = aac_driver_template.name;
	aac->id = shost->unique_id;
	aac->cardtype =  index;
	INIT_LIST_HEAD(&aac->entry);

	aac->fibs = kmalloc(sizeof(struct fib) * (shost->can_queue + AAC_NUM_MGT_FIB), GFP_KERNEL);
	if (!aac->fibs)
		goto out_free_host;
	spin_lock_init(&aac->fib_lock);

	/*
	 *	Map in the registers from the adapter.
	 */
	aac->base_size = AAC_MIN_FOOTPRINT_SIZE;
	if ((aac->regs.sa = ioremap(
	  (unsigned long)aac->scsi_host_ptr->base, AAC_MIN_FOOTPRINT_SIZE))
	  == NULL) {	
		printk(KERN_WARNING "%s: unable to map adapter.\n",
		  AAC_DRIVERNAME);
		goto out_free_fibs;
	}
	if ((*aac_drivers[index].init)(aac))
		goto out_unmap;

	/*
	 *	Start any kernel threads needed
	 */
	aac->thread_pid = kernel_thread((int (*)(void *))aac_command_thread,
	  aac, 0);
	if (aac->thread_pid < 0) {
		printk(KERN_ERR "aacraid: Unable to create command thread.\n");
		goto out_deinit;
	}

	/*
	 * If we had set a smaller DMA mask earlier, set it to 4gig
	 * now since the adapter can dma data to at least a 4gig
	 * address space.
	 */
	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
		if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
			goto out_deinit;
 
	aac->maximum_num_channels = aac_drivers[index].channels;
	error = aac_get_adapter_info(aac);
	if (error < 0)
		goto out_deinit;

	/*
 	 * Lets override negotiations and drop the maximum SG limit to 34
 	 */
 	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) && 
			(aac->scsi_host_ptr->sg_tablesize > 34)) {
 		aac->scsi_host_ptr->sg_tablesize = 34;
 		aac->scsi_host_ptr->max_sectors
 		  = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
 	}

	/*
	 * Firware printf works only with older firmware.
	 */
	if (aac_drivers[index].quirks & AAC_QUIRK_34SG) 
		aac->printf_enabled = 1;
	else
		aac->printf_enabled = 0;
 
 	/*
	 * max channel will be the physical channels plus 1 virtual channel
	 * all containers are on the virtual channel 0
	 * physical channels are address by their actual physical number+1
	 */
	if (aac->nondasd_support == 1)
		shost->max_channel = aac->maximum_num_channels + 1;
	else
		shost->max_channel = 1;

	aac_get_config_status(aac);
	aac_get_containers(aac);
	list_add(&aac->entry, insert);

	shost->max_id = aac->maximum_num_containers;
	if (shost->max_id < aac->maximum_num_physicals)
		shost->max_id = aac->maximum_num_physicals;
	if (shost->max_id < MAXIMUM_NUM_CONTAINERS)
		shost->max_id = MAXIMUM_NUM_CONTAINERS;
	else
		shost->this_id = shost->max_id;

	/*
	 * dmb - we may need to move the setting of these parms somewhere else once
	 * we get a fib that can report the actual numbers
	 */
	shost->max_lun = AAC_MAX_LUN;

	pci_set_drvdata(pdev, shost);

	error = scsi_add_host(shost, &pdev->dev);
	if (error)
		goto out_deinit;
	scsi_scan_host(shost);

	return 0;

 out_deinit:
	kill_proc(aac->thread_pid, SIGKILL, 0);
	wait_for_completion(&aac->aif_completion);

	aac_send_shutdown(aac);
	aac_adapter_disable_int(aac);
	free_irq(pdev->irq, aac);
 out_unmap:
	fib_map_free(aac);
	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys);
	kfree(aac->queues);
	iounmap(aac->regs.sa);
 out_free_fibs:
	kfree(aac->fibs);
	kfree(aac->fsa_dev);
 out_free_host:
	scsi_host_put(shost);
 out_disable_pdev:
	pci_disable_device(pdev);
 out:
	return error;
}

static void aac_shutdown(struct pci_dev *dev)
{
	struct Scsi_Host *shost = pci_get_drvdata(dev);
	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;
	aac_send_shutdown(aac);
}

static void __devexit aac_remove_one(struct pci_dev *pdev)
{
	struct Scsi_Host *shost = pci_get_drvdata(pdev);
	struct aac_dev *aac = (struct aac_dev *)shost->hostdata;

	scsi_remove_host(shost);

	kill_proc(aac->thread_pid, SIGKILL, 0);
	wait_for_completion(&aac->aif_completion);

	aac_send_shutdown(aac);
	aac_adapter_disable_int(aac);
	fib_map_free(aac);
	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr,
			aac->comm_phys);
	kfree(aac->queues);

	free_irq(pdev->irq, aac);
	iounmap(aac->regs.sa);
	
	kfree(aac->fibs);
	kfree(aac->fsa_dev);
	
	list_del(&aac->entry);
	scsi_host_put(shost);
	pci_disable_device(pdev);
}

static struct pci_driver aac_pci_driver = {
	.name		= AAC_DRIVERNAME,
	.id_table	= aac_pci_tbl,
	.probe		= aac_probe_one,
	.remove		= __devexit_p(aac_remove_one),
	.shutdown 	= aac_shutdown,
};

static int __init aac_init(void)
{
	int error;
	
	printk(KERN_INFO "Adaptec %s driver (%s)\n",
	  AAC_DRIVERNAME, aac_driver_version);

	error = pci_register_driver(&aac_pci_driver);
	if (error < 0)
		return error;

	aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
	if (aac_cfg_major < 0) {
		printk(KERN_WARNING
		       "aacraid: unable to register \"aac\" device.\n");
	}

	return 0;
}

static void __exit aac_exit(void)
{
	unregister_chrdev(aac_cfg_major, "aac");
	pci_unregister_driver(&aac_pci_driver);
}

module_init(aac_init);
module_exit(aac_exit);