Date: Mon, 15 Jun 2009 23:52:47 +0200 From: Daan Vreeken <Daan@vehosting.nl> To: freebsd-arch@freebsd.org Cc: FreeBSD-Current <freebsd-current@freebsd.org>, Alexander Motin <mav@mavhome.dp.ua> Subject: Re: WIP: ATA to CAM integration Message-ID: <200906152352.48231.Daan@vehosting.nl> In-Reply-To: <200906051728.n55HSFf0076644@apollo.backplane.com> References: <4A254B45.8050800@mavhome.dp.ua> <4A294DC3.5010008@mavhome.dp.ua> <200906051728.n55HSFf0076644@apollo.backplane.com>
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Hi, On Friday 05 June 2009 19:28:15 Matthew Dillon wrote: > :Latest AHCI specifications define feature named FIS Based Switching. It > :allows controller independently track state of every device beyond port > :multiplier. It should be quite easy to use it, but actually none of my > :controllers have that capability. > > Damn. The FBSS capability bit is not set on my (AMD) MCP77 based AHCI > SATA controller. That sucks. > > ahci0: <NVidia-MCP77-SATA>... > ahci0: AHCI 1.2 capabilities > 0xe3229f05<S64A,NCQ,SSNTF,SAL,SCLO,SPM,PMD>, 6 port > > Do you know of any host controllers which support FBS ? Any of the > Intel parts or machines per-chance? ... According to the following link : http://www.siliconimage.com/products/product.aspx?pid=32 the SiI3132 supports FIS based switching. We use them in a storage server prototype. Regards, -- Daan Vreeken VEHosting http://VEHosting.nl tel: +31-(0)40-7113050 / +31-(0)6-46210825 KvK nr: 17174380
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