Re: [patch] libata: add ioctls to support SMART

[Prakash K. Cheemplavam]

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John W. Linville wrote:
| Support for HDIO_DRIVE_CMD and HDIO_DRIVE_TASK in libata.  Useful for
| supporting SMART w/ unmodified smartctl and smartd userland binaries.
|
| Not happy w/ loop after failed ata_qc_new_init(), but needed because
smartctl
| and smartd did not retry after failure.  Likely need an option to wait for
| available qc?  Also not sure all the error return codes are correct...

Hi,

I just tried to give it a go with libata from 2.6.9-rc1. I had to fix
one rejects but the patching seemed to go fine beside that. Nevertheless
after a boot with patched libata I get:

smartctl -a /dev/sda
smartctl version 5.30 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

Device: ATA      SAMSUNG SP1614N  Version: TM10
Serial number: 0735J1FW702444
Device type: disk
Local Time is: Mon Aug 30 19:44:23 2004 CEST
Device does not support SMART

Device does not support Error Counter logging

[GLTSD (Global Logging Target Save Disable) set. Enable Save with '-S on']
Device does not support Self Test logging


I am pretty sure my drive supports SMART. I hope that I understood your
post correctly that with this patch it should work.

Cheers,

Prakash
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