From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751899AbYJRLnS (ORCPT ); Sat, 18 Oct 2008 07:43:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751063AbYJRLnD (ORCPT ); Sat, 18 Oct 2008 07:43:03 -0400 Received: from mail.atlantis.sk ([80.94.52.35]:42134 "EHLO mail.atlantis.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751400AbYJRLnA convert rfc822-to-8bit (ORCPT ); Sat, 18 Oct 2008 07:43:00 -0400 From: Ondrej Zary To: Alan Cox Subject: pata_it821x in 2.6.27 - works but no LBA48 and "hdparm -t" is slower Date: Sat, 18 Oct 2008 13:42:48 +0200 User-Agent: KMail/1.9.10 Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200810181342.50615.linux@rainbow-software.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, big thanks to Alan Cox for the work on pata_it821x driver. I just upgraded to 2.6.27 and my RAID1 on IT8212 controller now works without any patching. Good that I haven't resized my 30GB partition to full drive capacity yet because LBA48 does not work: ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11 pata_it821x 0000:00:12.0: PCI INT A -> Link[LNKC] -> GSI 11 (level, low) -> IRQ 11 pata_it821x: controller in smart mode. pata_it821x 0000:00:12.0: setting latency timer to 64 pata_it821x: Firmware 02/09/3030 0: MWDMA2 RAID1RAID 0+1 Volume: 0 SAMSUNG HD400LD 1: MWDMA2 RAID1RAID 0+1 Volume: 0 SAMSUNG HD400LD scsi2 : pata_it821x scsi3 : pata_it821x ata3: PATA max UDMA/133 cmd 0x6800 ctl 0x6c00 bmdma 0x7800 irq 11 ata4: PATA max UDMA/133 cmd 0x7000 ctl 0x7400 bmdma 0x7808 irq 11 ata3.00: ATA-4: Integrated Technology Express Inc, , max MWDMA2 ata3.00: 268435455 sectors, multi 0: LBA ^^ no 48 here ata3.00: RAID1 volume. ata3.00: configured for DMA scsi 2:0:0:0: Direct-Access ATA Integrated Techn n/a PQ: 0 ANSI: 5 sd 2:0:0:0: [sdb] 268435455 512-byte hardware sectors (137439 MB) ^^^^^^ should be 400088 sd 2:0:0:0: [sdb] Write Protect is off sd 2:0:0:0: [sdb] Mode Sense: 00 3a 00 00 sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sd 2:0:0:0: [sdb] 268435455 512-byte hardware sectors (137439 MB) sd 2:0:0:0: [sdb] Write Protect is off sd 2:0:0:0: [sdb] Mode Sense: 00 3a 00 00 sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA sdb: sdb1 sdb2 sdb3 sdb4 sd 2:0:0:0: [sdb] Attached SCSI disk sd 2:0:0:0: Attached scsi generic sg2 type 0 Also "hdparm -t" is slower (but "hdparm -t --direct" isn't - so it probably isn't pata_it821x issue): 2.6.26 (with my crappy patch): /dev/sdb: Timing buffered disk reads: 60 MB in 3.01 seconds = 19.91 MB/sec /dev/sdb: Timing O_DIRECT disk reads: 194 MB in 3.00 seconds = 64.62 MB/sec /dev/sdb: Model=Integrated Technology Express Inc , FwRev=, SerialNo=▒PX Config={ } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=0kB, MaxMultSect=0 (maybe): CurCHS=0/0/0, CurSects=0, LBA=no IORDY=no PIO modes: pio0 AdvancedPM=no * signifies the current active mode 2.6.27: /dev/sdb: Timing buffered disk reads: 48 MB in 3.08 seconds = 15.57 MB/sec /dev/sdb: Timing O_DIRECT disk reads: 196 MB in 3.02 seconds = 64.81 MB/sec /dev/sdb: Model=Integrated Technology Express Inc , FwRev=, SerialNo=▒'T Config={ } RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=unknown, BuffSize=0kB, MaxMultSect=0 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=781422766 IORDY=no PIO modes: pio0 DMA modes: mdma0 mdma1 mdma2 AdvancedPM=no Drive conforms to: Unspecified: ATA/ATAPI-0,1,2,3,4 * signifies the current active mode -- Ondrej Zary