Re: [PATCH] fix sata_sil quirk

[Paul Jakma]

On Tue, 22 Jun 2004, Jeff Garzik wrote:

> Here's my suggested fix...  good catch Ricky.
>
> Yes, unfortunately performance will be dog slow.
>
> Silicon Image 311x is fully SATA compliant -- but it's the only controller 
> that sends odd-sized packets to the SATA device.  That causes no end of 
> problems, including the thing that SIL_QUIRK_MOD15WRITE attempts to work 
> around.

As an extra data point, i have:

# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: WDC WD1600JD-00G Rev: 02.0
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: WDC WD1600JD-00G Rev: 02.0
  Type:   Direct-Access                    ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: WDC WD1600JD-00G Rev: 02.0
  Type:   Direct-Access                    ANSI SCSI revision: 05

# lspci  | grep Sil
00:09.0 RAID bus controller: Silicon Image, Inc. (formerly CMD 
Technology Inc) Silicon Image Serial ATARaid Controller [ CMD/Sil
3112/3112A ] (rev 02)
00:0a.0 RAID bus controller: Silicon Image, Inc. (formerly CMD 
Technology Inc) Silicon Image Serial ATARaid Controller
[ CMD/Sil 3112/3112A ] (rev 02)

# modinfo sata_sil
author:         Jeff Garzik
description:    low-level driver for Silicon Image SATA controller
license:        GPL
vermagic:       2.6.6-1.397.root K6 REGPARM gcc-3.3

And am not having (touch wood) any stability problems using these 
disks with linux md RAID1 and RAID5. Though, they're in a K6-II 350, 
so performance is slow anyway. (i get about 25MB/s absolute max 
reading from a RAID-5 array).

 > 	 Jeff

regards,
--
Paul Jakma	paul@xxxxxxxx	paul@xxxxxxxxx	Key ID: 64A2FF6A
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