linux-kernel - Re: [PATCH] virtio-scsi: Change sense buffer size to 252

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Date:	Fri, 7 Mar 2014 13:56:36 +0800
From:	Fam Zheng <famz@...hat.com>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH] virtio-scsi: Change sense buffer size to 252

On Thu, 03/06 11:09, Paolo Bonzini wrote:
> Il 06/03/2014 09:47, Fam Zheng ha scritto:
> >According to SPC-4, section 4.5.2.1, 252 is the limit of sense data. So
> >increase the value.
> >
> >Signed-off-by: Fam Zheng <famz@...hat.com>
> >---
> > include/linux/virtio_scsi.h | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h
> >index 4195b97..a437f7f 100644
> >--- a/include/linux/virtio_scsi.h
> >+++ b/include/linux/virtio_scsi.h
> >@@ -28,7 +28,7 @@
> > #define _LINUX_VIRTIO_SCSI_H
> >
> > #define VIRTIO_SCSI_CDB_SIZE   32
> >-#define VIRTIO_SCSI_SENSE_SIZE 96
> >+#define VIRTIO_SCSI_SENSE_SIZE 252
> >
> > /* SCSI command request, followed by data-out */
> > struct virtio_scsi_cmd_req {
> >
> 
> Hi Fam, how did you test this?
> 

I only tested the basic functionality of virtio-scsi. I'm doing more testing on
this and your fix on QEMU side now.

Thanks,
Fam
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