Re: [BK PATCHES] add ata scsi driver

Andre Hedrick
2003-06-02T09:44:16Z

JG,

This is the right move after months of debating ideas.
Migrating the contents of ./drivers/ide/pci to scsi is reasonable too.
This will allow the legacy drivers to die.

Taskfile came to late to be really useful, it is now best used as a model
to tackle FIS/FPDMA mapping for SATA II.

Linus, my professional opinion is to follow Jeff's direction for 2.5/2.6.
This will allow Linux to push open source to the hardware vendors.
There are several bastardized scsi-ide drivers in ./scsi.

pci2000.c,h :: pci2220i.c,h :: psi240i.c,h + psi_*.h :: eata*

ATAPI is nothing more than Bastardized SCSI beaten with an ugly stick.

Packet-Taskfile is more than painful, and I am not in the fighting mood.

Cheers,

Andre

On Mon, 26 May 2003, Jeff Garzik wrote:

> Just to echo some comments I said in private, this driver is _not_
> a replacement for drivers/ide. This is not, and has never been,
> the intention. In fact, I need drivers/ide's continued existence,
> so that I may have fewer boundaries on future development.
>
> Even though ATAPI support doesn't exist and error handling is
> primitive, this driver has been extensively tested locally and I feel
> is ready for a full and public kernel developer assault :)
>
> James ok'd sending this... I'll be sending "un-hack scsi headers" patch
> through him via his scsi-misc-2.5 tree.
>
>
>
>
> Linus, please do a
>
> bk pull bk://kernel.bkbits.net/jgarzik/scsi-2.5
>
> Others may download the patch from
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/jgarzik/patchkits/2.5/2.5.69-bk18-scsi1.patch.bz2
>
> This will update the following files:
>
> drivers/scsi/Kconfig | 27
> drivers/scsi/Makefile | 1
> drivers/scsi/ata_piix.c | 322 ++++++
> drivers/scsi/libata.c | 2247 ++++++++++++++++++++++++++++++++++++++++++++++++
> include/linux/ata.h | 485 ++++++++++
> 5 files changed, 3082 insertions(+)
>
> through these ChangeSets:
>
> <jgarzik@redhat.com> (03/05/26 1.1357)
> [scsi ata] make PATA config option actually do something useful
>
> <jgarzik@redhat.com> (03/05/26 1.1356)
> [scsi ata] include hacks, b/c scsi headers not in include/linux
>
> <jgarzik@redhat.com> (03/05/26 1.1355)
> [scsi] add ATA driver
>
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Andre Hedrick
LAD Storage Consulting Group