Messages in this thread | | | Date | Tue, 27 Mar 2001 09:06:48 -0800 (PST) | From | Andre Hedrick <> | Subject | Re: slow latencies on IDE disk drives( controller? ) |
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#define PCI_VENDOR_ID_CONTAQ 0x1080 #define PCI_DEVICE_ID_CONTAQ_82C599 0x0600 #define PCI_DEVICE_ID_CONTAQ_82C693 0xc693
* linux/drivers/block/cy82c693.c Version 0.34 Dec. 13, 1999 * * Copyright (C) 1998-99 Andreas S. Krebs (akrebs@altavista.net), Maintainer * Copyright (C) 1998-99 Andre Hedrick, Integrater
* Notes: * - I recently got a 16.8G IBM DTTA, so I was able to test it with * a large and fast disk - the results look great, so I'd say the * driver is working fine :-) * hdparm -t reports 8.17 MB/sec at about 6% CPU usage for the DTTA * - this is my first linux driver, so there's probably a lot of room * for optimizations and bug fixing, so feel free to do it. * - use idebus=xx parameter to set PCI bus speed - needed to calc * timings for PIO modes (default will be 40) * - if using PIO mode it's a good idea to set the PIO mode and * 32-bit I/O support (if possible), e.g. hdparm -p2 -c1 /dev/hda * - I had some problems with my IBM DHEA with PIO modes < 2 * (lost interrupts) ????? * - first tests with DMA look okay, they seem to work, but there is a * problem with sound - the BusMaster IDE TimeOut should fixed this
This is your fix....
Andre Hedrick Linux ATA Development ASL Kernel Development ----------------------------------------------------------------------------- ASL, Inc. Toll free: 1-877-ASL-3535 1757 Houret Court Fax: 1-408-941-2071 Milpitas, CA 95035 Web: www.aslab.com
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