** This is the quasi-official and semi-temporary T13 email list server. **
Hi andr�, (Any28BitsValue & 0x10000000) = 0 :-)
As the guy with a 28bitsLBA OS will loose plenty of
capacity, I think than going from 0x0FFFFFFF to
0x0FFFFFFE won't change lots.
Another question :
Is Ultra DMA 133, already proposed by Maxtor,
to be discussed and included in ATA 6 ?
Thanks for your informations.
Gilles Molli�
STMicroelectronics
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 16, 2001 9:09 PM
Subject: [temp t13] Re: Read Native Max in ATA/ATAPI-6
> ** This is the quasi-official and semi-temporary T13 email list server.
**
>
>
> Michael,
>
> You made a point I was going to bring you is that by allowing the BIOS
> guys to inc++ by one the 28-bit capacity it roles to ZERO, that provides
> the case to exclusive 48-bit and forced LBA and the complete death of CHS.
>
> Now if the BIOS imposes the inc++ and the content of 28bit cpacity becomes
> zero, then it is the HOST driver that has to know what to look for and
> handle.
>
> if (atadevice->28bitcapacitypointer & 0x0FFFFFFF)
> or
> if (atadevice->28bitcapacitypointer & 0x10000000)
>
> This is a quick test to see that we are going to be forced into doing
> 48-bit things.
>
> That is all.
>
> The problem is that nobody will accept when a mistake is made and it is a
> back scratch fest. Almost to the point of two wrongs to make a right.
> This is not optics or the hubble, sometimes less stable than the latter.
>
> Everyone here knew about the problem yet chose not to fix it.
> We are doing 48-bit and not 64-bit because it is path of least effort.
> We all know that 64-bit is where we go next regardless that the physical
> capacity to 144pb is not going to happen for a long time.
>
> I just want to be `completely lazy' and do it right the first time and
> only once, as to not have to repeat.
>
> Moral battle no, retentive and exact YES.
>
> Cheers,
>
> Andre Hedrick
> CTO ASL, Inc.
> Linux ATA Development
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