linux-kernel - Re: nForce 790i/MCP55: sata-nv or ahci ?

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Date:	Sun, 23 Nov 2008 23:35:22 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	linux-kernel@...r.kernel.org
Subject:  Re: nForce 790i/MCP55: sata-nv or ahci ?

J.A. Magallón wrote:
> Hi all...
> 
> I have read that modern nVidia SATA's are AHCI. But several distros I have
> tried use the sata-nv module for that chipset controller (MCP55).

Only ones more modern than that (MCP65 and later) are AHCI, MCP55 still 
uses sata_nv.

> Is this correct or should I use standard ahci ? Anyways, it looks that the
> kernel/modprobe settings use this, can I change it via kernel cmdline
> or modprobe.conf, and force the system to try ahci module ?
> By BIOS has no kind of setting to put the controlled in AHCI vs SATA mode...
> Playing with alias pci:v000010DEd0000037Fsv*sd*bc*sc*i* ?
> 
> wargo:~> lspci -s 00:0e
> 00:0e.0 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a3)
> 00:0e.1 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a3)
> 00:0e.2 IDE interface: nVidia Corporation MCP55 SATA Controller (rev a3)
> wargo:~> lspci -ns 00:0e
> 00:0e.0 0101: 10de:037f (rev a3)
> 00:0e.1 0101: 10de:037f (rev a3)
> 00:0e.2 0101: 10de:037f (rev a3)
> 
> TIA
> 

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