Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..

Robert Hancock wrote:

Mark Lord wrote:

Robert Hancock wrote:

..

Be careful of that.  The original PDC hardware for ADMA still had
the "don't cross a 64KB boundary" requirement.

..

That is part of the ADMA spec - but in that case, how come the pdc_adma.c driver sets the dma_boundary in the SCSI host template to 4GB? That seems wrong.

Ah, you are correct.  My memory is fading of such things.
The PDC parts are good for 2^34 transfer sizes (bytes).

Cheers
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• References:
  • RE: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: "Allen Martin" <[email protected]>
  • Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: Robert Hancock <[email protected]>
  • Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: Jens Axboe <[email protected]>
  • Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: Robert Hancock <[email protected]>
  • Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: Mark Lord <[email protected]>
  • Re: [RFC PATCH] nForce4 ADMA with NCQ: It's aliiiive..
    • From: Robert Hancock <[email protected]>

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