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[PATCH] libata-ncq: implement NCQ device configuration

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Now that all NCQ related stuff are in place, implement NCQ device
configuration and bump ATA_MAX_QUEUE to 32 thus activating NCQ
support.

Original implementation is from Jens Axboe.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo
2006-05-15 21:03:48 +09:00
parent e8ee84518c
commit a6e6ce8e8d
3 changed files with 78 additions and 3 deletions
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4
include/linux/libata.h
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@@ -109,7 +109,7 @@ enum {
ATA_MAX_PORTS = 8,
ATA_DEF_QUEUE = 1,
/* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
ATA_MAX_QUEUE = 2,
ATA_MAX_QUEUE = 32,
ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1,
ATA_MAX_SECTORS = 200, /* FIXME */
ATA_MAX_BUS = 2,
@@ -679,6 +679,8 @@ extern int ata_std_bios_param(struct scsi_device *sdev,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
int queue_depth);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
/*