From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: sata_sil24 not configuring drive right? Date: Tue, 03 Jul 2007 15:38:12 +0900 Message-ID: <4689EED4.6070507@gmail.com> References: <200706190628.38377.tbaumgartner@swissonline.ch> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.234]:16509 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753146AbXGCGiS (ORCPT ); Tue, 3 Jul 2007 02:38:18 -0400 Received: by nz-out-0506.google.com with SMTP id s18so1126432nze for ; Mon, 02 Jul 2007 23:38:17 -0700 (PDT) In-Reply-To: <200706190628.38377.tbaumgartner@swissonline.ch> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Theo Baumgartner Cc: linux-ide@vger.kernel.org Theo Baumgartner wrote: > Hello > > I've got a sil3124 card which doesn't seem to use the full speed of my drives. > > ------------------------------------------------------------------------------------------------------------------- > ata1: SATA max UDMA/100 cmd 0xe0850000 ctl 0x00000000 bmdma 0x00000000 irq 17 > ata2: SATA max UDMA/100 cmd 0xe0852000 ctl 0x00000000 bmdma 0x00000000 irq 17 > ata3: SATA max UDMA/100 cmd 0xe0854000 ctl 0x00000000 bmdma 0x00000000 irq 17 > ata4: SATA max UDMA/100 cmd 0xe0856000 ctl 0x00000000 bmdma 0x00000000 irq 17 > scsi0 : sata_sil24 > ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > ata1.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 > ata1.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 1) > ata1.00: configured for UDMA/100 > scsi1 : sata_sil24 > ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > ata2.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 > ata2.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 1) > ata2.00: configured for UDMA/100 > scsi2 : sata_sil24 > ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > ata3.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 > ata3.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 1) > ata3.00: configured for UDMA/100 > scsi3 : sata_sil24 > ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > ata4.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 > ata4.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 1) > ata4.00: configured for UDMA/100 > ------------------------------------------------------------------------------------------------------------------- > > Why does it tell "max UDMA/133" but then just uses UDMA/100? That's the controller mask being applied. UDMA mode doesn't matter for native SATA devices at all, so just ignore it. > and what about the NCQ depth 1? That's the harddrive reporting NCQ max depth of 1. Interesting. Care to post the result of "hdparm -I /dev/sda"? -- tejun