From: Gerd Hoffmann <kraxel@redhat.com>
To: Hannes Reinecke <hare@suse.de>
Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org,
virtualization@lists.linux-foundation.org
Subject: Re: [Qemu-devel] [PATCH 0/4] megaraid_sas HBA emulation
Date: Tue, 27 Oct 2009 17:47:21 +0100 [thread overview]
Message-ID: <4AE72419.60608@redhat.com> (raw)
In-Reply-To: <4AE71116.6080809@suse.de>
Hi,
> The device can be accessed by
>
> -drive if=raid,file=XXX
Don't extend that qemu automagic please. The new way to handle this is:
-drive if=none,id=mydisk,file=/path/to/some/disk.img
-device megasas,id=raid
-device scsi-disk,bus=raid.0,scsi-id=1,drive=mydisk
> In order to support SCSI command emulation I had to update /
> patch up the existing SCSI disk support. This might be
> not to everyones taste, so I'm open to alternative
> suggestions.
>
> But I certainly do _not_ want to update the SCSI disk
> emulation, as this is really quite tied to the SCSI parallel
> interface used by the old lsi53c895a.c.
--verbose please. I'd prefer to fix scsi-disk bugs and/or limitations
instead of working around them.
> Plus it doesn't do scatter-gather list handling,
Which should be fixed anyway.
cheers,
Gerd
WARNING: multiple messages have this Message-ID (diff)
From: Gerd Hoffmann <kraxel@redhat.com>
To: Hannes Reinecke <hare@suse.de>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [Qemu-devel] [PATCH 0/4] megaraid_sas HBA emulation
Date: Tue, 27 Oct 2009 17:47:21 +0100 [thread overview]
Message-ID: <4AE72419.60608@redhat.com> (raw)
In-Reply-To: <4AE71116.6080809@suse.de>
Hi,
> The device can be accessed by
>
> -drive if=raid,file=XXX
Don't extend that qemu automagic please. The new way to handle this is:
-drive if=none,id=mydisk,file=/path/to/some/disk.img
-device megasas,id=raid
-device scsi-disk,bus=raid.0,scsi-id=1,drive=mydisk
> In order to support SCSI command emulation I had to update /
> patch up the existing SCSI disk support. This might be
> not to everyones taste, so I'm open to alternative
> suggestions.
>
> But I certainly do _not_ want to update the SCSI disk
> emulation, as this is really quite tied to the SCSI parallel
> interface used by the old lsi53c895a.c.
--verbose please. I'd prefer to fix scsi-disk bugs and/or limitations
instead of working around them.
> Plus it doesn't do scatter-gather list handling,
Which should be fixed anyway.
cheers,
Gerd
next prev parent reply other threads:[~2009-10-27 16:48 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 15:26 [PATCH 0/4] megaraid_sas HBA emulation Hannes Reinecke
2009-10-27 15:26 ` [Qemu-devel] " Hannes Reinecke
2009-10-27 16:47 ` Gerd Hoffmann [this message]
2009-10-27 16:47 ` Gerd Hoffmann
2009-10-28 8:11 ` Hannes Reinecke
2009-10-28 8:11 ` Hannes Reinecke
2009-10-28 8:11 ` Hannes Reinecke
2009-10-28 8:20 ` Avi Kivity
2009-10-28 8:20 ` Avi Kivity
2009-10-28 8:20 ` Avi Kivity
2009-10-28 8:40 ` Christoph Hellwig
2009-10-28 8:40 ` Christoph Hellwig
2009-10-28 8:40 ` Christoph Hellwig
2009-10-28 10:54 ` Gerd Hoffmann
2009-10-28 10:54 ` Gerd Hoffmann
2009-10-28 13:58 ` Gerd Hoffmann
2009-10-28 13:58 ` Gerd Hoffmann
2009-10-28 19:25 ` Hannes Reinecke
2009-10-28 19:25 ` Hannes Reinecke
2009-10-29 4:37 ` Christoph Hellwig
2009-10-29 4:37 ` Christoph Hellwig
2009-10-29 8:47 ` Gerd Hoffmann
2009-10-29 8:47 ` Gerd Hoffmann
2009-10-29 8:47 ` Gerd Hoffmann
2009-10-29 12:57 ` Gerd Hoffmann
2009-10-29 12:57 ` Gerd Hoffmann
2009-10-29 14:57 ` Christoph Hellwig
2009-10-29 14:57 ` Christoph Hellwig
2009-10-29 15:14 ` Anthony Liguori
2009-10-29 15:14 ` Anthony Liguori
2009-10-29 15:15 ` Christoph Hellwig
2009-10-29 15:15 ` Christoph Hellwig
2009-10-29 15:15 ` Christoph Hellwig
2009-10-29 15:25 ` Anthony Liguori
2009-10-29 15:25 ` Anthony Liguori
2009-10-30 8:55 ` Gerd Hoffmann
2009-10-30 8:55 ` Gerd Hoffmann
2009-10-30 8:55 ` Gerd Hoffmann
2009-10-29 15:25 ` Anthony Liguori
2009-10-29 15:14 ` Anthony Liguori
2009-10-29 14:57 ` Christoph Hellwig
2009-10-30 8:12 ` Hannes Reinecke
2009-10-30 8:12 ` Hannes Reinecke
2009-10-30 8:12 ` Hannes Reinecke
2009-11-03 21:03 ` Gerd Hoffmann
2009-11-03 21:03 ` Gerd Hoffmann
2009-11-03 21:03 ` Gerd Hoffmann
2009-10-29 12:57 ` Gerd Hoffmann
2009-10-29 4:37 ` Christoph Hellwig
2009-10-28 10:54 ` Gerd Hoffmann
2009-10-27 16:47 ` Gerd Hoffmann
2009-11-11 1:49 ` Paul Brook
2009-11-11 1:49 ` Paul Brook
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