if (dev->class == ATA_DEV_ATAPI) {
struct request_queue *q = sdev->request_queue;
blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
- }
+
+ /* set the min alignment */
+ blk_queue_update_dma_alignment(sdev->request_queue,
+ ATA_DMA_PAD_SZ - 1);
+ } else
+ /* ATA devices must be sector aligned */
+ blk_queue_update_dma_alignment(sdev->request_queue,
+ ATA_SECT_SIZE - 1);
+ if (dev->class == ATA_DEV_ATA)
+ sdev->manage_start_stop = 1;
+
if (dev->flags & ATA_DFLAG_AN)
set_bit(SDEV_EVT_MEDIA_CHANGE, sdev->supported_events);
}
EXPORT_SYMBOL(scsi_unregister);
+static int __scsi_host_match(struct class_device *cdev, void *data)
+{
+ struct Scsi_Host *p;
+ unsigned short *hostnum = (unsigned short *)data;
+
+ p = class_to_shost(cdev);
+ return p->host_no == *hostnum;
+}
+
/**
* scsi_host_lookup - get a reference to a Scsi_Host by host no
- *
* @hostnum: host number to locate
*
* Return value: