From: Tomasz Chmielewski <mangoo@wpkg.org>
To: Luca Tettamanti <kronos.it@gmail.com>
Cc: kvm@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: lspci says: "SCSI storage controller: Qumranet, Inc. Virtio block device". Is it really?
Date: Mon, 19 Oct 2009 15:42:52 +0200 [thread overview]
Message-ID: <4ADC6CDC.3000409@wpkg.org> (raw)
In-Reply-To: <68676e00910190636r693950dfk6abccd4c8ed3ad63@mail.gmail.com>
Luca Tettamanti wrote:
>> So why was "SCSI storage controller" any better than "IDE interface" or
>> "SATA controller" for virtio block device, if it does not talk SCSI protocol
>> (other than "SCSI storage controller" being the first on the list of
>> subclasses)?
>
> Because both ATA and SATA classes have a generic driver that would try
> to bind to that controller (and the whole point of virtio block device
> is to avoid emulating a ATA/SATA controller).
>
>> Doesn't "80 Mass storage controller" ("0x80 0x00 Other mass storage
>> controller") fit better for virtio block device?
>
> Maybe. I guess that are compatibility problem with "other" operating systems.
Thanks for clarifications.
It makes sense in that case - I don't have any more questions ;)
--
Tomasz Chmielewski
http://wpkg.org
next prev parent reply other threads:[~2009-10-19 13:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-19 12:14 lspci says: "SCSI storage controller: Qumranet, Inc. Virtio block device". Is it really? Tomasz Chmielewski
2009-10-19 13:09 ` Luca Tettamanti
2009-10-19 13:31 ` Tomasz Chmielewski
2009-10-19 13:36 ` Luca Tettamanti
2009-10-19 13:42 ` Tomasz Chmielewski [this message]
2009-10-19 13:48 ` Vadim Rozenfeld
2009-10-19 19:01 ` Gerd Hoffmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4ADC6CDC.3000409@wpkg.org \
--to=mangoo@wpkg.org \
--cc=kronos.it@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.