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Message-Id: <200707061458.19838.surenkarapetyan@gmail.com> Date: Fri, 6 Jul 2007 14:58:06 +0500 From: Suren Karapetyan <surenkarapetyan@...il.com> To: Christoph Pleger <Christoph.Pleger@...uni-dortmund.de> Cc: linux-kernel@...r.kernel.org Subject: Re: PATA-disk named sda On Friday 06 July 2007 14:36:18 Christoph Pleger wrote: > Hello, > > > In recent kernels both PATA and SATA (SCSI too) drives are handled by > > libata library. It calls all the drives sd* . > > If so, what about the use of hdparm then? I could not change parameters > like DMA, MultSectIO and 32-Bit support with hdparm. sdparm also did not > do that work. > > Regards > Christoph > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ There was a discussion about this on http://www.redhat.com/archives/fedora-devel-list/2007-April/msg01079.html Which concludes with what Alan Cox wrote. "In DMA modes the 32bit I/O feature and multi-sector mode are not used. For the moment libata also only supports 32bit PIO on some controllers and for those it si handled automatically. Over time it may well gain 32bit support for more, but again the goal is it will be entirely automatically done if so." - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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