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SubjectRe: [IDE SiI680] throughput drop to 1/4
Date
> There should be a mode or a flag option in the siimage.h to disable MMIO
> by default. I am courious if this is a BARRIER on the read/write screwing
> the pooch!

It cannot be involved. If you read the code you'll see the SII driver doesnt
yet override outbsync so it can't be involved. We aren't doing any posting
prevention yet
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