Messages in this thread | | | Date | Fri, 12 Apr 2002 02:15:28 -0700 (PDT) | From | Andre Hedrick <> | Subject | Re: VIA, 32bit PIO and 2.5.x kernel |
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On Fri, 12 Apr 2002, Jens Axboe wrote:
> On Fri, Apr 12 2002, Petr Vandrovec wrote: > > I believe that there must be some reason for doing that... And > > do not ask me why it worked in 2.4.x, as it cleared io_32bit > > in task_out_intr too. > > Because 2.4 doesn't use that path for fs requests. And be glad that it > doesn't otherwise _everybody_ would have much worse problems than you > are currently seeing.
Maybe if everyone ever bothered to look at the code base and not assume they know everything ... and enjoying feable attempts to cast me as a fool. Better yet maybe understand the hardware ...
ata_input_data
io_32bit = drive->io_32bit;
if (io_32bit) insl(IDE_DATA_REG, buffer, wcount); else insw(IDE_DATA_REG, buffer, wcount<<1);
or
ata_output_data
io_32bit = drive->io_32bit;
if (io_32bit) outsl(IDE_DATA_REG, buffer, wcount); else outsw(IDE_DATA_REG, buffer, wcount<<1);
WHOA is it not obvious it is the total number of calls to the same damn DATA-TASKFILE-REGISTER-PORT
Which is only SIXTEEN BITS WIDE!
So please contine to write 32 bits to a 16 bit wide address... Legacy or not the physical layer to the device, so please go look there. Why do I even bother, all of you are so much smarter than me.
Cheers,
Andre Hedrick LAD Storage Consulting Group
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