Re: SII SATA request size limit

[Marcelo Penna Guerra]

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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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