From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Promise TX4 + SiI 3726 : only one disk visible Date: Tue, 16 May 2006 08:24:00 +0900 Message-ID: <44690D90.2030208@gmail.com> References: <6EB652BF05BEE44FA2A29B23F3A71528045B3857@UBIMAIL1.ubisoft.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0102.google.com ([64.233.162.203]:17036 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S1750751AbWEOXYE (ORCPT ); Mon, 15 May 2006 19:24:04 -0400 Received: by nz-out-0102.google.com with SMTP id 18so228524nzp for ; Mon, 15 May 2006 16:24:03 -0700 (PDT) In-Reply-To: <6EB652BF05BEE44FA2A29B23F3A71528045B3857@UBIMAIL1.ubisoft.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jerome Vuarand Cc: linux-ide@vger.kernel.org, jerome.vuarand@gmail.com, Jeff Garzik Jerome Vuarand wrote: > Hi, > > Abstract : SiI3726 based port multiplier on Promise SATA300 TX4 don't > work on Slackware 10.2 with 2.6.16.16 kernel and libata-tj-stable > combined patch : only one disk accessible behind the port multiplier. > Don't bother reading the long mail if that is a known issue. From README... The following drivers support new features. ata_piix: new EH, irq-pio, warmplug (hardware restriction) sata_sil: new EH, irq-pio, hotplug ahci: new EH, irq-pio, NCQ, hotplug sata_sil24: new EH, irq-pio, NCQ, hotplug, Port Multiplier ^^^^^^^^^^^ ^^^^^^^^^^^^^^^ [--snip--] > I don't know really what the problem is, and I don't know what else to > try. Your libata-tj README mention the SiI 4726 chipset, but there is no > such chipset on Silicon Image website, so I guessed you meant SiI 3726, > but I may be wrong on that point. Yes, there is 4726. I don't have 3726 yet but 4726 is probably 3726 + storage processor (so that it can do disk virtualization/RAID stuff). I'll add support for 3726 soon. PMP support requires support from low-level drivers (sata_sil24, sata_promise,...) and sata_promise doesn't have it yet. As noted above, the only supported card is SiI3124/32 and I'm working on AHCI. As for sata_promise, I don't know. I don't have the card nor the document, so it won't come out of me. Jeff is planning to work on sata_promise and he might also do PM stuff, I guess. -- tejun