Messages in this thread | | | Date | Sat, 20 Sep 2003 14:28:37 -0400 | From | Jeff Garzik <> | Subject | Re: 2.7 block ramblings (was Re: DMA for ide-scsi?) |
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Jens Axboe wrote: > On Tue, Sep 16 2003, Jeff Garzik wrote:
>>And we should deprecate them with a solution that aligns what with Linus >>described in Dec 2001 on lkml: a chrdev where userland write(2)s cdbs >>and taskfiles, and read(2)s the results. This is where my thinking >>picked up: if we are creating a chrdev to send "packets" and receive >>responses to those packets............ <insert conclusion here> > > > == bsg, block sg. Did you read what I wrote? :). I started implementing > this and have something that barely works. You just bind a block device > to a /dev/sg* char device and use read/write on that. Aka sg.
sg needs some modifications -- for example it errors out instead of sleeps on queue full -- but sounds good to me.
> I don't want ioctls command submission interfaces more than you do.
Groovy.
Jeff
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