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SubjectRe: SII SATA request size limit
Date
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Alan Cox escreveu:

> It will depend what disks you have.
A friend from a forum found out this on NetBSD:

/*
    * Rev. <= 0x01 of the 3112 have a bug that can cause data
    * corruption if DMA transfers cross an 8K boundary.  This is
    * apparently hard to tickle, but we'll go ahead and play it
    * safe.
    */
   if (PCI_REVISION(pa->pa_class) <= 0x01) {
      sc->sc_dma_maxsegsz = 8192;
      sc->sc_dma_boundary = 8192;
   }
It seems to be a bug only in the first revisions of the chip. Can anyone
confirm this? My chip is revision 2 and it doesn't have this bug.

> You can up it again at runtime.

How do I set the rqsize on 2.6.x?

Marcelo Penna Guerra
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