From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964818AbWHCQbJ (ORCPT ); Thu, 3 Aug 2006 12:31:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964833AbWHCQbJ (ORCPT ); Thu, 3 Aug 2006 12:31:09 -0400 Received: from customer-domains.icp-qv1-irony8.iinet.net.au ([203.59.1.133]:24255 "EHLO customer-domains.icp-qv1-irony8.iinet.net.au") by vger.kernel.org with ESMTP id S964818AbWHCQbI (ORCPT ); Thu, 3 Aug 2006 12:31:08 -0400 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== X-IronPort-AV: i="4.07,209,1151856000"; d="scan'208"; a="420801177:sNHT14861236" From: "Marc" To: linux-kernel@vger.kernel.org Subject: sata_promise / libata defaulting to UDMA/33 Date: Fri, 4 Aug 2006 00:31:05 +0800 Message-Id: <20060803163002.M27080@liquid-nexus.net> X-Mailer: Open WebMail 2.51 20050627 X-OriginatingIP: 192.168.127.244 (marc) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. I'm having great difficulty solving a problem I've encountered. I have a Promise Fastrak TX4000 card: 0000:00:08.0 RAID bus controller: Promise Technology, Inc. PDC20619 (FastTrak TX4000) (rev 02) Subsystem: Promise Technology, Inc. PDC20619 (FastTrak TX4000) Flags: bus master, 66MHz, medium devsel, latency 96, IRQ 137 For some strange reason all drives are set to UDMA/33 mode when the module is loaded and I haven't found a way of changing the UDMA mode (hdparm -X doesn't work: HDIO_DRIVE_CMD(setxfermode) failed: Input/output error). Extract from dmesg: libata version 1.20 loaded. sata_promise 0000:00:08.0: version 1.04 ata1: PATA max UDMA/133 cmd 0xF8ABC200 ctl 0xF8ABC238 bmdma 0x0 irq 137 ata2: PATA max UDMA/133 cmd 0xF8ABC280 ctl 0xF8ABC2B8 bmdma 0x0 irq 137 ata3: PATA max UDMA/133 cmd 0xF8ABC300 ctl 0xF8ABC338 bmdma 0x0 irq 137 ata4: PATA max UDMA/133 cmd 0xF8ABC380 ctl 0xF8ABC3B8 bmdma 0x0 irq 137 ata1: disabling port scsi1 : sata_promise ata2: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f ata2: dev 0 ATA-6, max UDMA/100, 312581808 sectors: LBA48 ata2: dev 0 configured for UDMA/33 scsi2 : sata_promise ata3: dev 0 cfg 49:2f00 82:746b 83:7f01 84:4633 85:7469 86:3c01 87:4623 88:203f ata3: dev 0 ATA-7, max UDMA/100, 312581808 sectors: LBA48 ata3: dev 0 configured for UDMA/33 scsi3 : sata_promise ata4: dev 0 cfg 49:2f00 82:346b 83:7f01 84:4003 85:3469 86:3c01 87:4003 88:203f ata4: dev 0 ATA-6, max UDMA/100, 312581808 sectors: LBA48 ata4: dev 0 configured for UDMA/33 scsi4 : sata_promise Vendor: ATA Model: WDC WD1600JB-00E Rev: 15.0 Type: Direct-Access ANSI SCSI revision: 05 Vendor: ATA Model: WDC WD1600JB-00R Rev: 20.0 Type: Direct-Access ANSI SCSI revision: 05 Vendor: ATA Model: WDC WD1600JB-00E Rev: 15.0 Type: Direct-Access ANSI SCSI revision: 05 I'm currently running kernel 2.6.17.3. In the controller's BIOS I've created 3 'stripe' arrays with 1 disk per array, the BIOS shows the 3 drives as U5 (UDMA mode 5 - which is UDMA/100 right?). I've searched high and low but haven't found an answer to this problem. Help appreciated. Please - I'm getting dismal performance. Regards, --