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[PATCH] libata: ata_scsi_slave_config cleanup 

Encapsulate some of ata_scsi_slave_config so that parts
can be reused in future SAS patches.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Brian King 2006-03-17 17:04:15 -06:00 committed by Jeff Garzik
parent e46834cd2d
commit a6cce2a79d
1 changed files with 37 additions and 25 deletions
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54
drivers/scsi/libata-scsi.c
View File

@ -662,33 +662,17 @@ void ata_gen_fixed_sense(struct ata_queued_cmd *qc)
}
}
/**
* ata_scsi_slave_config - Set SCSI device attributes
* @sdev: SCSI device to examine
*
* This is called before we actually start reading
* and writing to the device, to configure certain
* SCSI mid-layer behaviors.
*
* LOCKING:
* Defined by SCSI layer. We don't really care.
*/
int ata_scsi_slave_config(struct scsi_device *sdev)
static void ata_scsi_sdev_config(struct scsi_device *sdev)
{
sdev->use_10_for_rw = 1;
sdev->use_10_for_ms = 1;
}
blk_queue_max_phys_segments(sdev->request_queue, LIBATA_MAX_PRD);
if (sdev->id < ATA_MAX_DEVICES) {
struct ata_port *ap;
struct ata_device *dev;
static void ata_scsi_dev_config(struct scsi_device *sdev,
struct ata_device *dev)
{
unsigned int max_sectors;
ap = (struct ata_port *) &sdev->host->hostdata[0];
dev = &ap->device[sdev->id];
/* TODO: 2048 is an arbitrary number, not the
* hardware maximum. This should be increased to
* 65534 when Jens Axboe's patch for dynamically
@ -711,6 +695,34 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
request_queue_t *q = sdev->request_queue;
blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
}
}
/**
* ata_scsi_slave_config - Set SCSI device attributes
* @sdev: SCSI device to examine
*
* This is called before we actually start reading
* and writing to the device, to configure certain
* SCSI mid-layer behaviors.
*
* LOCKING:
* Defined by SCSI layer. We don't really care.
*/
int ata_scsi_slave_config(struct scsi_device *sdev)
{
ata_scsi_sdev_config(sdev);
blk_queue_max_phys_segments(sdev->request_queue, LIBATA_MAX_PRD);
if (sdev->id < ATA_MAX_DEVICES) {
struct ata_port *ap;
struct ata_device *dev;
ap = (struct ata_port *) &sdev->host->hostdata[0];
dev = &ap->device[sdev->id];
ata_scsi_dev_config(sdev, dev);
}
return 0; /* scsi layer doesn't check return value, sigh */