Re: DISABLE_CLUSTERING in scsi drivers

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On Sun, 2 Dec 2018, Hannes Reinecke wrote:

> Well, that lone 'kmap' is due to a quirk/errata in the datasheet; essentially
> we have to PIO a lone byte out of the FIFO to clear it up.
> And this byte is technically still part of the SCSI data, so we need to
> stuff it onto the end of the actual data sg list. Which is what the kmap()
> thingie does.
> So it really shouldn't be affected by the clustering algorithm.
> 

Sorry, I don't follow.

If it's dead code, can it be removed?

If it's not, does it require DISABLE_CLUSTERING?

-- 

> Cheers,
> 
> Hannes
> 



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