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From: James Bottomley <James.Bottomley@SteelEye.com>
To: Mike Christie <michaelc@cs.wisc.edu>
Cc: Vladislav Bolkhovitin <vst@vlnb.net>,
	johan@capvert.se, iscsitarget-devel@lists.sourceforge.net,
	mingz@ele.uri.edu, stgt <stgt-devel@lists.berlios.de>,
	Robert Whitehead <WRWHITEHEAD@novell.com>,
	scst-devel@lists.sourceforge.net, linux-scsi@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>
Subject: Re: Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] stgt a new version of iscsi target?
Date: Thu, 08 Dec 2005 14:48:10 -0500	[thread overview]
Message-ID: <1134071290.3259.31.camel@mulgrave> (raw)
In-Reply-To: <4398850D.8070102@cs.wisc.edu>

On Thu, 2005-12-08 at 13:10 -0600, Mike Christie wrote:
> cleanup. In the end some of the scsi people liked the idea of throwing 
> the non-read/write command to userspace and to do this we just decided 
> to start over but I have been cutting and pasting your code and cleaning 
> it up as I add more stuff.

To be honest, I'd like to see all command processing at user level
(including read/write ... for block devices, it shouldn't be that
inefficient, since you're merely going to say remap an area from one
device to another; as long as no data transformation ever occurs, the
user never touches the data and it all remains in the kernel page
cache).

My ideal for the kernel based infrastructure is a simple tap for
transporting commands addressed to devices upwards (and the responses
downwards).  Then everyone can have their own user space processing
implementation that I don't have to care about.

James



  reply	other threads:[~2005-12-08 19:50 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <OF6932015B.01CF53D9-ONC12570D0.00462028@capvert.ins>
     [not found] ` <43972C2D.9060500@cs.wisc.edu>
2005-12-08 18:46   ` Ang: Re: [Stgt-devel] Re: stgt a new version of iscsi target? Vladislav Bolkhovitin
2005-12-08 18:54     ` Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " Mike Christie
2005-12-09 15:30       ` Ang: Re: [Stgt-devel] " Vladislav Bolkhovitin
2005-12-09 22:31         ` Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " Mike Christie
2005-12-08 19:10     ` Mike Christie
2005-12-08 19:48       ` James Bottomley [this message]
2005-12-08 20:09         ` Mike Christie
2005-12-08 21:35           ` Dave C Boutcher
2005-12-08 21:56             ` Mike Christie
2005-12-09 15:29               ` Vladislav Bolkhovitin
2005-12-09 22:31                 ` Mike Christie
2005-12-10 15:31                   ` Vladislav Bolkhovitin
2005-12-10 18:19                     ` Mike Christie
2005-12-10  8:46                 ` FUJITA Tomonori
2005-12-09 15:30             ` Vladislav Bolkhovitin
2005-12-09 15:29           ` Vladislav Bolkhovitin
2005-12-21 23:53         ` FUJITA Tomonori
2005-12-22 10:38           ` Vladislav Bolkhovitin
2005-12-26 23:53         ` Ang: " FUJITA Tomonori
2005-12-28 16:32           ` James Bottomley
2005-12-31  3:27             ` Mike Christie
2005-12-31 15:33               ` James Bottomley
2005-12-09 15:28       ` Vladislav Bolkhovitin
2005-12-09 22:23         ` Mike Christie
2005-12-10  1:15           ` Ang: Re: [Stgt-devel] " Mike Christie
2005-12-10 15:30             ` Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " Vladislav Bolkhovitin
2005-12-10 18:22               ` Mike Christie
2005-12-10  8:46         ` FUJITA Tomonori
2005-12-10 15:32           ` Ang: Re: [Stgt-devel] " Vladislav Bolkhovitin
2005-12-10 15:54             ` Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " FUJITA Tomonori
2005-12-14 15:17               ` [Scst-devel] " Vladislav Bolkhovitin
2005-12-10 18:09             ` Mike Christie
2005-12-14 15:09               ` Ang: Re: [Stgt-devel] " Vladislav Bolkhovitin
2005-12-08 19:47     ` Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " James Bottomley
2005-12-09  3:57       ` Mike Christie
2005-12-09 15:00         ` Ang: Re: [Stgt-devel] " Ming Zhang
2005-12-09 15:29       ` [Scst-devel] Re: Ang: Re: [Stgt-devel] Re: [Iscsitarget-devel] " Vladislav Bolkhovitin
2005-12-09 15:48         ` James Bottomley
2005-12-10 15:32           ` Vladislav Bolkhovitin
2005-12-10 18:07             ` Mike Christie
2005-12-14 15:06               ` Vladislav Bolkhovitin
2005-12-14 19:55                 ` Mike Christie
2005-12-15 18:53                   ` Vladislav Bolkhovitin

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