Re: [PATCH] libata: implement ata_wait_after_reset()

[Paul Mundt]

On Wed, May 16, 2007 at 06:44:53PM +0200, Tejun Heo wrote:
> This patch is against the current libata-dev#upstream +
> pata_scc-fix-build-failure[1].
> 
>   [1] http://article.gmane.org/gmane.linux.kernel/528405
> 
> Paul, please verify this fixes your problem.  You can skip the
> pata_scc patch, it will cause pata_scc part to be rejected but doesn't
> matter.
> 
Yes, this does get iVDR detection working again. The only problem seems
to be that every now and then I end up with this:

scsi0 : sata_sil
scsi1 : sata_sil
ata1: SATA max UDMA/100 cmd 0xfd000280 ctl 0xfd00028a bmdma 0xfd000200 irq 0
ata2: SATA max UDMA/100 cmd 0xfd0002c0 ctl 0xfd0002ca bmdma 0xfd000208 irq 0
ata1: device not ready (errno=-19), forcing hardreset
ata1: COMRESET failed (errno=-19)
ata1: reset failed (errno=-19), retrying in 9 secs
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)

So at least the drive detection works, but it would be nice not to
trigger this 9-second retry.
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