linux-kernel - Re: [PATCH RESEND 0/1] AHCI: Optimize interrupt processing

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Date:	Wed, 31 Jul 2013 19:11:07 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc:	James Bottomley <James.Bottomley@...senPartnership.com>,
	Jens Axboe <axboe@...nel.dk>,
	Mike Christie <michaelc@...wisc.edu>,
	Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, Jeff Garzik <jgarzik@...ox.com>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH RESEND 0/1] AHCI: Optimize interrupt processing

On Thu, Jul 25, 2013 at 12:16:41PM +0200, Alexander Gordeev wrote:
> On Mon, Jul 22, 2013 at 02:10:36PM -0700, Nicholas A. Bellinger wrote:
> > Np.  FYI, you'll want to use the latest commit e7827b351 HEAD from
> > target-pending/scsi-mq, which now has functioning scsi-generic support.
> 
> Survives a boot, a kernel build and the build's result :)

Not that rosy. Turned out the old code is called. Hangs with this hunk..

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index ac05cd6..a75fd41 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1103,6 +1103,8 @@ static struct device_attribute *piix_sidpr_shost_attrs[] = {
 static struct scsi_host_template piix_sidpr_sht = {
 	ATA_BMDMA_SHT(DRV_NAME),
 	.shost_attrs		= piix_sidpr_shost_attrs,
+	.scsi_mq		= true,
+	.queuecommand_mq	= ata_scsi_queuecmd,
 };
 
 static struct ata_port_operations piix_sidpr_sata_ops = {


-- 
Regards,
Alexander Gordeev
agordeev@...hat.com
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