Re: Playing with SATA NCQ

[Jens Axboe <axboe@suse.de>]

On Fri, May 27 2005, Jeff Garzik wrote:
> Jens Axboe wrote:
> >@@ -189,7 +194,7 @@
> > 	.ioctl			= ata_scsi_ioctl,
> > 	.queuecommand		= ata_scsi_queuecmd,
> > 	.eh_strategy_handler	= ata_scsi_error,
> >-	.can_queue		= ATA_DEF_QUEUE,
> >+	.can_queue		= ATA_MAX_QUEUE,
> > 	.this_id		= ATA_SHT_THIS_ID,
> > 	.sg_tablesize		= AHCI_MAX_SG,
> > 	.max_sectors		= ATA_MAX_SECTORS,
> >@@ -200,7 +205,7 @@
> > 	.dma_boundary		= AHCI_DMA_BOUNDARY,
> > 	.slave_configure	= ata_scsi_slave_config,
> > 	.bios_param		= ata_std_bios_param,
> >-	.ordered_flush		= 1,
> >+	.ordered_flush		= 0, /* conflicts with NCQ for now */
> > };
> > 
> > static struct ata_port_operations ahci_ops = {
> 
> Also, you'll probably want to implement ata_scsi_change_queue_depth, and 
> reference it in ahci.c (and other NCQ-capable drivers).

Done!

-- 
Jens Axboe

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