Messages in this thread | | | Date | Sun, 14 Jul 2002 16:07:41 +0200 (CEST) | From | Joerg Schilling <> | Subject | Re: IDE/ATAPI in 2.5 |
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>From alan@lxorguk.ukuu.org.uk Fri Jul 12 22:22:45 2002
>On Fri, 2002-07-12 at 21:08, Joerg Schilling wrote: >> There are enough other OS that use a common ATAPI/SCSI driver concept and >> do not have the problems you vagely name but never really describe.
>There are lots that fudge around and pretend scsi is the block layer >when it is not. That sort of misses the point and slows down high end >raid cards.
It seems that you miss to understand the needed underlying driver structures. SCSI is not a block layer, it is a generic transport.
>> I believe it's OK to drop support for 10 year old hardware in case this >> is no important hardware that _really_ needs continued support (like >> e.g. 9 track trapes).
>We support and people continue to use large amounts of ten year old >hardware. Thats why children at quite a few schools have access to >computing through things like LTSP. There are people actively >maintaining much of this stuff too.
I never agued to completely drop support for them. You cannot do decent DAE with pre-1998 CD-ROM drives, so why try to support DAE for old drives? Just use them as read-only DA drives.
>Some things such as ide tapes which have needs rather different to scsi >tape are still being made and released in newer and larger forms.
If you have a IDE tape that acts as tape, it most likely uses SCSI tape commands. If it acts as a big floppy, it is not relevent in this discussion.
>> ATA devices that are neither hard disks, nor do support ATAPI decently >> are Y 1992 crap - so unless you like to have continued support for your >> provate museum, what is the reason that you like to prevent a change >> to a more usable driver interface?
>You still don't seem to understand the difference between a driver >interface and a hardware layer.
Well, from previous discussions with you, you did proove that this is exactly what _you_ don't understand.
Jörg
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin js@cs.tu-berlin.de (uni) If you don't have iso-8859-1 schilling@fokus.gmd.de (work) chars I am J"org Schilling URL: http://www.fokus.gmd.de/usr/schilling ftp://ftp.fokus.gmd.de/pub/unix - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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