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[PATCH] libata: Add ata_host_set_init

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Add ata_host_set_init in preparation for SAS attached SATA.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Brian King 2006-08-07 14:27:10 -05:00 committed by Jeff Garzik
parent c256e95f7d
commit b03732f006
2 changed files with 26 additions and 4 deletions
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28
drivers/scsi/libata-core.c
View File

@ -5350,6 +5350,28 @@ err_out:
return NULL; return NULL;
} }
/**
* ata_sas_host_init - Initialize a host_set struct
* @host_set: host_set to initialize
* @dev: device host_set is attached to
* @flags: host_set flags
* @ops: port_ops
*
* LOCKING:
* PCI/etc. bus probe sem.
*
*/
void ata_host_set_init(struct ata_host_set *host_set,
struct device *dev, unsigned long flags,
const struct ata_port_operations *ops)
{
spin_lock_init(&host_set->lock);
host_set->dev = dev;
host_set->flags = flags;
host_set->ops = ops;
}
/** /**
* ata_device_add - Register hardware device with ATA and SCSI layers * ata_device_add - Register hardware device with ATA and SCSI layers
* @ent: Probe information describing hardware device to be registered * @ent: Probe information describing hardware device to be registered
@ -5381,15 +5403,12 @@ int ata_device_add(const struct ata_probe_ent *ent)
(ent->n_ports * sizeof(void *)), GFP_KERNEL); (ent->n_ports * sizeof(void *)), GFP_KERNEL);
if (!host_set) if (!host_set)
return 0; return 0;
spin_lock_init(&host_set->lock);
host_set->dev = dev; ata_host_set_init(host_set, dev, ent->host_set_flags, ent->port_ops);
host_set->n_ports = ent->n_ports; host_set->n_ports = ent->n_ports;
host_set->irq = ent->irq; host_set->irq = ent->irq;
host_set->mmio_base = ent->mmio_base; host_set->mmio_base = ent->mmio_base;
host_set->private_data = ent->private_data; host_set->private_data = ent->private_data;
host_set->ops = ent->port_ops;
host_set->flags = ent->host_set_flags;
/* register each port bound to this device */ /* register each port bound to this device */
for (i = 0; i < ent->n_ports; i++) { for (i = 0; i < ent->n_ports; i++) {
@ -5908,6 +5927,7 @@ EXPORT_SYMBOL_GPL(sata_deb_timing_hotplug);
EXPORT_SYMBOL_GPL(sata_deb_timing_long); EXPORT_SYMBOL_GPL(sata_deb_timing_long);
EXPORT_SYMBOL_GPL(ata_std_bios_param); EXPORT_SYMBOL_GPL(ata_std_bios_param);
EXPORT_SYMBOL_GPL(ata_std_ports); EXPORT_SYMBOL_GPL(ata_std_ports);
EXPORT_SYMBOL_GPL(ata_host_set_init);
EXPORT_SYMBOL_GPL(ata_device_add); EXPORT_SYMBOL_GPL(ata_device_add);
EXPORT_SYMBOL_GPL(ata_port_detach); EXPORT_SYMBOL_GPL(ata_port_detach);
EXPORT_SYMBOL_GPL(ata_host_set_remove); EXPORT_SYMBOL_GPL(ata_host_set_remove);

2
include/linux/libata.h
View File

@ -684,6 +684,8 @@ extern int ata_pci_clear_simplex(struct pci_dev *pdev);
#endif /* CONFIG_PCI */ #endif /* CONFIG_PCI */
extern int ata_device_add(const struct ata_probe_ent *ent); extern int ata_device_add(const struct ata_probe_ent *ent);
extern void ata_port_detach(struct ata_port *ap); extern void ata_port_detach(struct ata_port *ap);
extern void ata_host_set_init(struct ata_host_set *, struct device *,
unsigned long, const struct ata_port_operations *);
extern void ata_host_set_remove(struct ata_host_set *host_set); extern void ata_host_set_remove(struct ata_host_set *host_set);
extern int ata_scsi_detect(struct scsi_host_template *sht); extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg); extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);