Message-ID: <46D6B85C.5050509@free.fr>
Date: Thu, 30 Aug 2007 14:30:20 +0200
From: John Sigler <linux.kernel@free.fr>
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To: linux-ide@vger.kernel.org
CC: linux-kernel@vger.kernel.org, vojtech@suse.cz
Subject: Re: hda: set_drive_speed_status: status=0x51 { DriveReady SeekComplete
 Error }
References: <46D59ED2.4000900@free.fr> <20070829174657.09c7de3c@the-village.bc.nu> <46D67D09.6090101@free.fr> <46D69E03.9080403@vc.cvut.cz>
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Petr Vandrovec wrote:

> John Sigler wrote:
>
>> Alan Cox wrote:
>>
>>> Basically your dinosaur is working correctly.
>>
>> What do the warnings mean? :-)
> 
> That your drive does not support set transfer mode/speed command at all, 
> or that value which kernel tried is not supported by the drive...
> 
> I would guess that some contractor wrote firmware for device for PQI in 
> one day for $100, and before that somebody else designed ATA-SD bridge 
> for PQI for another $100.
> 
> I guess that these two printk()s happen because drive claims to support 
> pio0,1,2 - so Linux tries pio2, drive refuses, Linux tries pio1, drive 
> refuses, and finally as pio0 is default, that one gets used.  Which is 
> more or less confirmed by having no '*' sign in front of any pio - with 
> "real" drives you should see '*' in front of one of listed dma/pio modes.
> 
> You should ask reseller how they can ship drive which does not conform 
> to any ATA standard...

I took drivers/ide/pci/via82cxxx.c and sprinkled ENTER/EXIT printk's.
http://lxr.linux.no/source/drivers/ide/pci/via82cxxx.c

via82cxxx_tune_drive() and via82cxxx_ide_dma_check() both call 
via_set_drive() which calls ide_config_drive_speed().

http://lxr.linux.no/source/drivers/ide/ide-iops.c#L769

   if (error)
   {
     (void) ide_dump_status(drive, "set_drive_speed_status", stat);
     printk(KERN_INFO "EXIT %s error\n", __func__);
     return error;
   }

Does someone know why error is not set to 0?


Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:07.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:07.1
     ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:pio, hdb:pio
     ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
hda: PQI IDE DiskOnModule, ATA DISK drive
ENTER via82cxxx_tune_drive
ENTER via_set_drive
ENTER ide_config_drive_speed
hda: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
hda: set_drive_speed_status: error=0x04 { DriveStatusError }
EXIT ide_config_drive_speed error
ENTER via_set_speed
EXIT via_set_speed
EXIT via_set_drive
EXIT via82cxxx_tune_drive pio == 255
ENTER via82cxxx_ide_dma_check
ENTER via_set_drive
ENTER ide_config_drive_speed
hda: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
hda: set_drive_speed_status: error=0x04 { DriveStatusError }
EXIT ide_config_drive_speed error
ENTER via_set_speed
EXIT via_set_speed
EXIT via_set_drive
EXIT via82cxxx_ide_dma_check
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hda: max request size: 128KiB
hda: 128000 sectors (65 MB) w/1KiB Cache, CHS=500/8/32
  hda: hda1 hda2

Regards.
-
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