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From: Jeff Garzik <jeff@garzik.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Andi Kleen <andi@firstfloor.org>,
	David Miller <davem@davemloft.net>,
	tytso@mit.edu, hugh@veritas.com, akpm@linux-foundation.org,
	kosaki.motohiro@jp.fujitsu.com, mchan@broadcom.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	netdev@vger.kernel.org
Subject: Re: [bug?] tg3: Failed to load firmware "tigon/tg3_tso.bin"
Date: Mon, 07 Jul 2008 13:24:37 -0400	[thread overview]
Message-ID: <48725155.2040007@garzik.org> (raw)
In-Reply-To: <20080707165333.6347f564@the-village.bc.nu>

Alan Cox wrote:
>>> And we had the same argument over ten years ago about those evil module
>>> things which stopped you just using scp to copy the kernel in one go.
>>> Fortunately the nay sayers lost so we have modules.
>> Broken analogy.
>>
>> When modules were added, you were given the option to use them, or not.
> 
> You can still choose to compile firmware in. Did you read the patches ?

You cannot compile the firmware into the modules themselves, which is a 
regression from current behavior.

Its a problem for cases where you cannot as readily update the kernel 
image, such as vendor kernel + driver disk situations, or other examples 
already cited.

When the firmware travels with the module, as it does today in tg3, bnx2 
and others, is the most reliable system available.  The simplest, the 
least amount of "parts", the easiest to upgrade, the best method to 
guarantee driver/firmware version matches.  It works wonderfully today.

Is it difficult to see why someone might want to keep the same attributes?

Compiled-in firmware wastes memory and isn't upgradable -- just like 
static kernel vs. kernel modules debate -- but it IS far more reliable 
than any system where the firmware is separated from the kernel module 
itself.

I'd heartily support David's efforts if it was done in a regression-free 
manner.  But it is just so easy to build and package a _silently_ 
non-working driver, simply because the firmware got missed somewhere.

The best path to this new system is to (a) ensure the old system still 
works, and then (b) make it easy (transparent?) to adopt the new system.

	Jeff



  reply	other threads:[~2008-07-07 17:25 UTC|newest]

Thread overview: 142+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20080703020236.adaa51fa.akpm@linux-foundation.org>
2008-07-03 11:59 ` [bug?] tg3: Failed to load firmware "tigon/tg3_tso.bin" KOSAKI Motohiro
2008-07-03 12:21   ` Jeff Garzik
2008-07-03 13:04     ` Hugh Dickins
2008-07-03 13:11       ` Jeff Garzik
2008-07-03 13:33         ` David Woodhouse
2008-07-03 13:38           ` Jeff Garzik
2008-07-03 13:52             ` David Woodhouse
2008-07-03 17:30               ` Theodore Tso
2008-07-03 18:56                 ` David Woodhouse
2008-07-03 19:31                   ` Valdis.Kletnieks
2008-07-03 19:49                     ` David Woodhouse
2008-07-03 20:52                       ` Rafael J. Wysocki
2008-07-03 21:03                   ` Jeff Garzik
2008-07-03 21:33                     ` David Woodhouse
2008-07-03 21:42                       ` Rafael J. Wysocki
2008-07-03 21:43                         ` David Woodhouse
2008-07-03 21:52                           ` Rafael J. Wysocki
2008-07-03 21:54                             ` David Woodhouse
2008-07-03 22:27                               ` Rafael J. Wysocki
2008-07-03 22:22                       ` Jeff Garzik
2008-07-03 22:25                         ` Alan Cox
2008-07-03 23:14                           ` Jeff Garzik
2008-07-03 23:02                             ` Alan Cox
2008-07-04  2:31                           ` Mikael Pettersson
2008-07-03 23:21                   ` David Miller
2008-07-04  0:18                     ` Theodore Tso
2008-07-04  1:09                       ` David Woodhouse
2008-07-04  1:47                         ` Theodore Tso
2008-07-04  0:24                     ` David Woodhouse
2008-07-04  1:28                       ` Grant Coady
2008-07-04  2:42                       ` david
2008-07-04 10:07                         ` David Woodhouse
2008-07-04 10:09                       ` Andi Kleen
2008-07-04 13:10                         ` David Woodhouse
2008-07-04 13:15                           ` Jeff Garzik
2008-07-04 13:27                             ` David Woodhouse
2008-07-04 13:39                               ` Jeff Garzik
2008-07-04 13:27                                 ` Alan Cox
2008-07-04 13:48                                   ` David Woodhouse
2008-07-04 14:06                                   ` Jeff Garzik
2008-07-04 20:43                                   ` David Miller
2008-07-04 21:04                                     ` Alan Cox
2008-07-06 20:17                                       ` david
2008-07-06 20:27                                         ` David Woodhouse
2008-07-06 20:51                                           ` Jeff Garzik
2008-07-06 20:52                                           ` david
2008-07-06 20:56                                             ` David Woodhouse
2008-07-06 21:03                                               ` david
2008-07-06 21:38                                               ` Jeff Garzik
2008-07-06 22:10                                                 ` David Woodhouse
2008-07-06 23:22                                                   ` Jeff Garzik
2008-07-05  6:05                                     ` Jeff Garzik
2008-07-07 17:52                                     ` Rick Jones
2008-07-04 13:46                                 ` David Woodhouse
2008-07-04 14:07                                   ` Jeff Garzik
2008-07-04 14:38                                     ` Alan Cox
2008-07-06 23:40                                       ` Jeff Garzik
2008-07-07 15:53                                         ` Alan Cox
2008-07-07 17:24                                           ` Jeff Garzik [this message]
2008-07-07 18:13                                             ` Alan Cox
2008-07-07 18:57                                               ` Jeff Garzik
2008-07-07 18:30                                                 ` Alan Cox
2008-07-07 19:16                                                   ` Jeff Garzik
2008-07-07 18:45                                                     ` Alan Cox
2008-07-07 19:48                                                       ` Jeff Garzik
2008-07-07 20:48                                                   ` David Miller
2008-07-07 20:42                                                     ` Alan Cox
2008-07-07 21:45                                                       ` David Miller
2008-07-07 21:14                                                         ` Alan Cox
2008-07-07 21:58                                                           ` David Miller
2008-07-08  6:36                                                             ` Alan Cox
2008-07-08  8:57                                                               ` David Miller
2008-07-04 14:30                                 ` Theodore Tso
2008-07-04 14:37                                   ` David Woodhouse
2008-07-04 18:01                                   ` David Woodhouse
2008-07-04 20:28                                     ` Sam Ravnborg
2008-07-05  4:35                                   ` Jeff Garzik
2008-07-04 20:39                                 ` David Miller
2008-07-04 14:10                               ` Theodore Tso
2008-07-04 14:23                                 ` Takashi Iwai
2008-07-04 14:39                                   ` Hannes Reinecke
2008-07-04 14:42                                     ` David Woodhouse
2008-07-04 21:34                                       ` Grant Coady
2008-07-04 22:08                                         ` David Woodhouse
2008-07-04 23:13                                       ` Olivier Galibert
2008-07-04 23:58                                         ` Henrique de Moraes Holschuh
     [not found]                                         ` <20080704235839.GA5649@khazad-dum.debian.net>
2008-07-05  0:51                                           ` Trent Piepho
2008-07-05  3:52                                             ` Henrique de Moraes Holschuh
2008-07-05  6:01                                               ` Bill Fink
2008-07-05 13:08                                                 ` Henrique de Moraes Holschuh
2008-07-05  4:10                                           ` Jeff Garzik
2008-07-05  7:41                                         ` Takashi Iwai
2008-07-05  8:50                                           ` David Woodhouse
2008-07-05 10:53                                           ` Olivier Galibert
2008-07-05 11:22                                             ` Andi Kleen
2008-07-05 12:02                                               ` Olivier Galibert
2008-07-05 12:09                                                 ` Andi Kleen
2008-07-05 12:16                                                   ` David Woodhouse
2008-07-05 12:23                                                     ` Andi Kleen
2008-07-05 12:42                                                       ` David Woodhouse
2008-07-05 13:57                                                         ` Andi Kleen
2008-07-05 14:44                                                     ` Olivier Galibert
2008-07-05 15:10                                                       ` David Woodhouse
2008-07-05 17:13                                                     ` Christoph Hellwig
2008-07-05 20:55                                                       ` David Woodhouse
2008-07-06 10:02                                                         ` Christoph Hellwig
2008-07-06 10:55                                                           ` David Woodhouse
2008-07-06 11:50                                                             ` Andi Kleen
2008-07-06 12:22                                                               ` David Woodhouse
2008-07-04 14:44                                     ` Takashi Iwai
2008-07-04 14:24                                 ` maximilian attems
2008-07-04 14:36                                   ` Theodore Tso
2008-07-05 10:26                                     ` maximilian attems
2008-07-04 14:31                                 ` David Woodhouse
2008-07-04 20:37                               ` David Miller
2008-07-04 20:42                                 ` Arjan van de Ven
2008-07-04 20:43                                   ` David Woodhouse
2008-07-04 20:52                                     ` David Miller
2008-07-04 21:05                                       ` David Woodhouse
2008-07-05  4:05                                       ` Valdis.Kletnieks
2008-07-04 20:51                                   ` David Miller
2008-07-04 20:59                                     ` Arjan van de Ven
2008-07-04 21:12                                       ` David Woodhouse
2008-07-04 21:10                                     ` Alan Cox
2008-07-04 20:53                                 ` David Woodhouse
2008-07-05  4:04                                   ` Jeff Garzik
2008-07-04 13:42                           ` Andi Kleen
2008-07-03 20:34         ` David Miller
2008-07-03 20:54           ` David Woodhouse
2008-07-09 20:43             ` Alexandre Oliva
2008-07-04 11:06       ` Takashi Iwai
2008-07-04 13:17         ` David Woodhouse
2008-07-04 13:26           ` Takashi Iwai
2008-07-04 13:28             ` David Woodhouse
2008-07-04 13:42             ` Jeff Garzik
2008-07-04 13:45               ` David Woodhouse
2008-07-04 14:10                 ` Jeff Garzik
2008-07-04 14:13                   ` David Woodhouse
2008-07-05  6:14                     ` Jeff Garzik
2008-07-04 13:28           ` Jeff Garzik
2008-07-03 16:10   ` Chuck Lever
2008-07-05  5:49 Jaswinder Singh

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