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Merge of /spare/repo/libata-dev branch bridge-detect

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This commit is contained in:
2005-06-04 01:02:00 -04:00 • committed by Jeff Garzik
commit 70c8523381
3 changed files with 35 additions and 2 deletions
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35
drivers/scsi/libata-core.c
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@ -1295,6 +1295,37 @@ err_out:
DPRINTK("EXIT, err\n");
}
static inline u8 ata_dev_knobble(struct ata_port *ap)
{
return ((ap->cbl == ATA_CBL_SATA) && (!ata_id_is_sata(ap->device->id)));
}
/**
* ata_dev_config - Run device specific handlers and check for
* SATA->PATA bridges
* @ap: Bus
* @i: Device
*
* LOCKING:
*/
void ata_dev_config(struct ata_port *ap, unsigned int i)
{
/* limit bridge transfers to udma5, 200 sectors */
if (ata_dev_knobble(ap)) {
printk(KERN_INFO "ata%u(%u): applying bridge limits\n",
ap->id, ap->device->devno);
ap->udma_mask &= ATA_UDMA5;
ap->host->max_sectors = ATA_MAX_SECTORS;
ap->host->hostt->max_sectors = ATA_MAX_SECTORS;
ap->device->flags |= ATA_DFLAG_LOCK_SECTORS;
}
if (ap->ops->dev_config)
ap->ops->dev_config(ap, &ap->device[i]);
}
/**
* ata_bus_probe - Reset and probe ATA bus
* @ap: Bus to probe
@ -1322,8 +1353,7 @@ static int ata_bus_probe(struct ata_port *ap)
ata_dev_identify(ap, i);
if (ata_dev_present(&ap->device[i])) {
found = 1;
if (ap->ops->dev_config)
ap->ops->dev_config(ap, &ap->device[i]);
ata_dev_config(ap,i);
}
}
@ -4408,6 +4438,7 @@ EXPORT_SYMBOL_GPL(ata_scsi_release);
EXPORT_SYMBOL_GPL(ata_host_intr);
EXPORT_SYMBOL_GPL(ata_dev_classify);
EXPORT_SYMBOL_GPL(ata_dev_id_string);
EXPORT_SYMBOL_GPL(ata_dev_config);
EXPORT_SYMBOL_GPL(ata_scsi_simulate);
#ifdef CONFIG_PCI