Date: Sun, 01 Jul 2007 09:01:29 +0100 From: Dieter <freebsd@sopwith.solgatos.com> To: Peter B <pb@ludd.ltu.se> Cc: freebsd-hackers@freebsd.org Subject: Re: SII3512 rev0 ? Message-ID: <200707011601.QAA29911@sopwith.solgatos.com> In-Reply-To: Your message of "Sun, 01 Jul 2007 05:08:30 %2B0200." <200707010308.l6138U24009649@brother.ludd.ltu.se>
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> >> Any input on the reliability of SII3512 is also welcomed.
> >
> >dmesg | grep 3512
> >satalink0: Silicon Image SATALink 3512 (rev. 0x01)
> >
> >No reliability problems from the 3512. (up 74 days)
> >
> >This is on an Alpha box running NetBSD. I haven't tried the 3512
> >with FreeBSD.
I took a quick look at the drivers, and found a difference.
NetBSD:
dev/pci/satalink.c
/*
* 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;
FreeBSD:
dev/ata/ata-chipset.c
if ((ctlr->chip->cfg2 & SIIBUG) && ch->dma) {
/* work around errata in early chips */
ch->dma->boundary = 16 * DEV_BSIZE;
ch->dma->segsize = 15 * DEV_BSIZE;
}
And of course there may be other differences I didn't find.
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