From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: John Alvord <jalvo@mbay.net>
Cc: Patrick Mochel <mochelp@infinity.powertie.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [RFC] New Driver Model for 2.5
Date: Fri, 19 Oct 2001 00:23:44 +0200 [thread overview]
Message-ID: <20011018222344.7467@smtp.wanadoo.fr> (raw)
In-Reply-To: <pbiust45nr5rtsl7d8qlf6gu8p8er91gtj@4ax.com>
In-Reply-To: <pbiust45nr5rtsl7d8qlf6gu8p8er91gtj@4ax.com>
>Maybe each driver could pass back a value indicating
>
>1) all done
>2) N milliseconds more, please
>
>and you could keep calling until every driver says all done. The
>all-done drivers would ignore any new interrupts. The Not-Yet drivers
>could get the last few interrupts the need to complete. Of course
>there would need to be an overall timeout. That would leave most of
>the responsibility with the drivers... who know most of the true
>requirements.
Hrm... The interesting thing with this scheme is that it allows
you to first block your queue, then let other driver do the same
while your async IO completes, and then come back. Well... this
could be an option to step "2" of my earlier proposal.
This requires the device structure to keep track of which driver
still wants to be called. It would only go to step 3 once all
drivers have ack'ed step 2.
Ben.
next prev parent reply other threads:[~2001-10-18 22:24 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-17 23:52 [RFC] New Driver Model for 2.5 Patrick Mochel
2001-10-18 6:23 ` Jeff Garzik
2001-10-18 12:13 ` Benjamin Herrenschmidt
2001-10-18 16:19 ` Patrick Mochel
2001-10-18 17:38 ` Tim Jansen
2001-10-18 22:06 ` Benjamin Herrenschmidt
2001-10-19 17:09 ` Kai Henningsen
2001-10-18 22:10 ` Kai Henningsen
2001-10-19 18:26 ` Patrick Mochel
2001-10-19 19:02 ` Tim Jansen
2001-10-19 19:21 ` Mike Fedyk
2001-10-19 20:07 ` Tim Jansen
2001-10-19 20:24 ` Mike Fedyk
2001-10-19 22:25 ` Tim Jansen
2001-10-20 13:47 ` Kai Henningsen
2001-10-20 1:41 ` john slee
2001-10-20 13:52 ` Kai Henningsen
2001-10-22 11:02 ` Padraig Brady
2001-10-27 11:01 ` Kai Henningsen
2001-10-19 7:57 ` Henning P. Schmiedehausen
2001-10-19 8:09 ` Jeff Garzik
2001-10-19 8:31 ` Keith Owens
2001-10-19 8:43 ` Jeff Garzik
2001-10-19 18:50 ` Tim Jansen
2001-10-19 15:21 ` Taral
2001-10-19 23:30 ` Benjamin Herrenschmidt
2001-10-19 23:54 ` Benjamin Herrenschmidt
2001-10-18 15:17 ` Patrick Mochel
2001-10-18 16:08 ` Taral
2001-10-18 16:52 ` Jonathan Lundell
2001-10-18 17:38 ` Patrick Mochel
2001-10-18 17:41 ` Patrick Mochel
2001-10-18 18:28 ` Jonathan Lundell
2001-10-18 19:49 ` Patrick Mochel
2001-10-18 20:40 ` Jeff Garzik
2001-10-18 21:32 ` John Alvord
2001-10-18 22:23 ` Benjamin Herrenschmidt [this message]
2001-10-18 22:26 ` Jeff Garzik
2001-10-18 22:18 ` Benjamin Herrenschmidt
2001-10-18 23:30 ` Patrick Mochel
2001-10-18 23:44 ` Benjamin Herrenschmidt
2001-10-18 23:52 ` Jeff Garzik
[not found] ` <3BCF3941.D4B79FE1@mandrakesoft.com>
2001-10-19 17:12 ` Jonathan Lundell
2001-10-18 17:05 ` Jonathan Corbet
2001-10-18 17:33 ` Patrick Mochel
-- strict thread matches above, loose matches on Subject: below --
2001-10-19 17:01 Kevin Easton
2001-10-19 18:40 ` Patrick Mochel
2001-10-19 21:43 Grover, Andrew
2001-10-19 23:33 Benjamin Herrenschmidt
2001-10-20 0:09 ` Linus Torvalds
2001-10-20 9:28 ` Benjamin Herrenschmidt
2001-10-21 17:09 ` Pavel Machek
2001-10-23 0:19 ` Patrick Mochel
2001-10-23 0:31 ` Alan Cox
2001-10-23 0:29 ` Patrick Mochel
2001-10-23 7:53 ` Alan Cox
2001-10-23 15:10 ` Jonathan Lundell
2001-10-23 15:49 ` Alan Cox
2001-10-23 20:22 ` Benjamin Herrenschmidt
2001-10-23 20:54 ` Alan Cox
2001-10-24 0:26 ` Benjamin Herrenschmidt
2001-10-24 9:57 ` Alan Cox
2001-10-24 10:34 ` Benjamin Herrenschmidt
2001-10-24 10:54 ` Alan Cox
2001-10-24 13:04 ` Benjamin Herrenschmidt
2001-10-24 13:25 ` Alan Cox
2001-10-24 16:19 ` Linus Torvalds
2001-10-24 16:36 ` Michael H. Warfield
2001-10-24 16:45 ` Linus Torvalds
2001-10-24 22:48 ` Alan Cox
2001-10-24 16:15 ` Linus Torvalds
2001-10-24 16:46 ` Xavier Bestel
2001-10-24 16:54 ` Patrick Mochel
2001-10-24 16:55 ` Linus Torvalds
2001-10-24 22:45 ` Alan Cox
2001-10-24 17:33 ` Benjamin Herrenschmidt
2001-10-24 22:41 ` Alan Cox
2001-10-24 22:41 ` Linus Torvalds
2001-10-25 7:58 ` Benjamin Herrenschmidt
2001-10-25 12:22 ` Alan Cox
2001-10-25 14:57 ` Benjamin Herrenschmidt
2001-10-25 8:03 ` Benjamin Herrenschmidt
2001-10-25 8:09 ` Benjamin Herrenschmidt
2001-10-25 12:20 ` Alan Cox
2001-10-25 21:47 ` Pavel Machek
2001-10-24 22:50 ` Alan Cox
2001-10-25 4:14 ` Linus Torvalds
2001-10-25 12:42 ` Alan Cox
2001-10-25 21:52 ` Xavier Bestel
2001-10-25 23:53 ` Benjamin Herrenschmidt
2001-10-25 23:53 ` Alan Cox
2001-10-26 11:35 ` Helge Hafting
2001-10-26 12:38 ` Alan Cox
2001-10-25 8:27 ` Rob Turk
2001-10-25 10:01 ` Benjamin Herrenschmidt
2001-10-25 10:02 ` Helge Hafting
2001-10-25 14:20 ` Victor Yodaiken
2001-10-25 14:44 ` Jeff Garzik
2001-10-25 14:45 ` Jeff Garzik
2001-10-25 15:22 ` Rob Turk
2001-10-25 15:44 ` Jonathan Lundell
2001-10-25 16:26 ` David Lang
2001-10-25 21:59 ` Pavel Machek
2001-10-25 21:32 ` Rob Turk
2001-10-24 17:01 ` Mike Anderson
2001-10-25 9:02 ` Eric W. Biederman
2001-10-25 9:29 ` Linus Torvalds
2001-10-25 9:47 ` Benjamin Herrenschmidt
2001-10-25 10:11 ` Eric W. Biederman
2001-10-25 10:59 ` Linus Torvalds
2001-10-24 15:18 ` Jonathan Lundell
2001-10-24 15:41 ` Linus Torvalds
2001-10-24 15:59 ` Alan Cox
2001-10-24 15:56 ` Linus Torvalds
2001-10-23 9:44 ` Pavel Machek
2001-10-23 11:03 ` Benjamin Herrenschmidt
2001-10-23 11:49 ` Benjamin Herrenschmidt
2001-10-23 10:54 ` Benjamin Herrenschmidt
2001-10-24 17:56 Grover, Andrew
2001-10-24 18:45 ` Benjamin Herrenschmidt
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