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    SubjectRe: 2.5.69, IDE TCQ can't be enabled
    On Tue, May 13 2003, Jens Axboe wrote:
    > On Tue, May 13 2003, Jeff Garzik wrote:
    > > On Tue, May 13, 2003 at 08:03:34PM +0200, Jens Axboe wrote:
    > > > On Tue, May 13 2003, Dave Jones wrote:
    > > > > On Tue, May 13, 2003 at 08:40:59AM +0200, Jens Axboe wrote:
    > > > > > > Weird. Mine doesn't seem to assert it, nor does the identify page
    > > > > > > indicate it's supported. Maybe I have a broken drive firmware.
    > > > > >
    > > > > > Then the linux code won't work on it, have you tried? I've tried a lot
    > > > > > of different IBM models, they all do service interrupts just fine.
    > > > >
    > > > > bug in the firmware version on Jeffs drives perhaps ?
    > > >
    > > > It's possible, it would help a lot of Jeff would answer the question
    > > > above and maybe even share what drive he is using with us.
    > >
    > > hehe, just did (answer: no). I'll post hdparm -I for it tomorrow.
    >
    > :) thanks! fwiw, I've tried DTLA, DPTA, and the IC vancouvers here.

    btw, you may want to see the IDE_TCQ_FIDDLE_SI define in ide-tcq, here's
    the comment I put there:

    /*
    * we are leaving the SERVICE interrupt alone, IBM drives have it
    * on per default and it can't be turned off. Doesn't matter, this
    * is the sane config.
    */
    #undef IDE_TCQ_FIDDLE_SI

    Are you sure this isn't what you are seeing?

    --
    Jens Axboe

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