From: Greg KH <greg@kroah.com>
To: "Bryan O'Sullivan" <bos@pathscale.com>
Cc: Andrew Morton <akpm@osdl.org>, Roland Dreier <rdreier@cisco.com>,
linux-kernel@vger.kernel.org, openib-general@openib.org
Subject: Re: RFC: ipath ioctls and their replacements
Date: Thu, 19 Jan 2006 14:57:16 -0800 [thread overview]
Message-ID: <20060119225716.GB27689@kroah.com> (raw)
In-Reply-To: <1137649988.25584.67.camel@localhost.localdomain>
On Wed, Jan 18, 2006 at 09:53:08PM -0800, Bryan O'Sullivan wrote:
> On Wed, 2006-01-18 at 21:39 -0800, Greg KH wrote:
>
> > Ok, that's fair enough. But if you want to do something like ptys, then
> > why not just have your own filesystem for this driver?
>
> If you think it's appropriate to implement a new filesystem to replace a
> single ioctl that returns two integers, we can probably do that, but
> more realistically, the GETPORT ioctl can probably live a long and
> untroubled life as another netlink message.
Well it only takes about 250 lines to make a new fs these days, but a
single netlink message would probably be smaller :)
> > You are just making your own type of special interface up as you
> > go, so the complexity is also there (this complexity would normally be
> > in some core code, which I am hoping that your code will turn into for
> > other devices of the same type, right?)
>
> The most important chunk of likely common code I can see at the moment
> is the stuff for bodging user page mappings that we got hammered over
> already. The drivers/infiniband/ tree already has code that does
> something like this, and a few other not-yet-in-tree network drivers
> that support RDMA have similar needs, too.
The RDMA-loving people need to get together and hammer out a proposal
that the network people can laugh at and shoot down all at once :)
Ok, maybe not shoot down, but they do need to get together and come up
with some kind of solution, add-hok implementations in a bunch of
different drivers, in a bunch of different ways is not the proper thing
to do, no matter _how_ different the hardware works at the lower levels.
thanks,
greg k-h
next prev parent reply other threads:[~2006-01-19 22:57 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-19 0:43 RFC: ipath ioctls and their replacements Bryan O'Sullivan
2006-01-19 0:48 ` David S. Miller
2006-01-19 1:14 ` Bryan O'Sullivan
2006-01-19 1:17 ` David S. Miller
2006-01-19 5:17 ` Bryan O'Sullivan
2006-01-19 5:43 ` Greg KH
2006-01-19 0:53 ` Greg KH
2006-01-19 1:17 ` Bryan O'Sullivan
2006-01-19 2:54 ` Greg KH
2006-01-19 2:57 ` Greg KH
2006-01-19 3:49 ` Andrew Morton
2006-01-19 4:03 ` Greg KH
2006-01-19 5:02 ` Bryan O'Sullivan
2006-01-19 5:39 ` Greg KH
2006-01-19 5:53 ` Bryan O'Sullivan
2006-01-19 22:57 ` Greg KH [this message]
2006-01-19 23:44 ` Bryan O'Sullivan
2006-01-20 0:02 ` [openib-general] " Sean Hefty
2006-01-19 8:25 ` Eric W. Biederman
2006-01-19 8:39 ` David S. Miller
2006-02-24 20:19 ` [PATCH 1/1] Topology c fix Zachary Amsden
2006-02-25 0:17 ` Andrew Vasquez
2006-01-19 16:29 ` RFC: ipath ioctls and their replacements Bryan O'Sullivan
2006-01-19 18:20 ` Eric W. Biederman
2006-01-19 18:50 ` [openib-general] " Sean Hefty
2006-01-19 18:55 ` Bryan O'Sullivan
2006-01-19 20:31 ` Eric W. Biederman
2006-01-19 21:53 ` Bryan O'Sullivan
2006-01-19 21:08 ` Sean Hefty
2006-01-19 21:52 ` Bryan O'Sullivan
2006-01-19 18:50 ` Bryan O'Sullivan
2006-01-19 20:29 ` Eric W. Biederman
2006-01-19 20:47 ` [openib-general] " Steve Wise
2006-01-19 22:13 ` Bryan O'Sullivan
2006-01-21 4:40 ` Roland Dreier
2006-01-25 22:32 ` Bryan O'Sullivan
2006-01-25 22:43 ` [openib-general] " Muli Ben-Yehuda
2006-01-25 22:55 ` Bryan O'Sullivan
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=20060119225716.GB27689@kroah.com \
--to=greg@kroah.com \
--cc=akpm@osdl.org \
--cc=bos@pathscale.com \
--cc=linux-kernel@vger.kernel.org \
--cc=openib-general@openib.org \
--cc=rdreier@cisco.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).