Re: [RFT] major libata update

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Tejun Heo wrote:
On Thu, May 18, 2006 at 04:07:58PM -0700, Andrew Morton wrote:
Yes it does.  I dropped it and got

SCSI subsystem initialized
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ACPI (acpi_bus-0191): Device is not power manageable [20060310]
ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 19 (level, low) -> IRQ 19
ata1: SATA max UDMA/133 cmd 0x2148 ctl 0x217E bmdma 0x2110 irq 19
ata2: SATA max UDMA/133 cmd 0x2140 ctl 0x217A bmdma 0x2118 irq 19
ata1: SATA port has no device.

Then I undropped it and got

SCSI subsystem initialized
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ACPI (acpi_bus-0191): Device is not power manageable [20060310]
ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 19 (level, low) -> IRQ 19
ata1: SATA max UDMA/133 cmd 0x2148 ctl 0x217E bmdma 0x2110 irq 19
ata2: SATA max UDMA/133 cmd 0x2140 ctl 0x217A bmdma 0x2118 irq 19
ata1.00: ATA-7, max UDMA/133, 321672960 sectors: LBA48 NCQ (depth 0/32)
ata1.00: configured for UDMA/133
scsi0 : ata_piix

and a computer which boots.

Look closer, please ;)

Hello, Andrew.

I see.  It seems that you're reporting two separate problems - your
PCS register doesn't report presence properly && the TF registers
report ghost device if the first device is ATAPI.  I can reproduce the
second here, but AFAIK the only controller which had problem with PCS
persence bits was ESB6300 until now.

Can you post the result of 'lspci -n' and ata_piix boot probing
messages with the following patch applied?  It would be helpful if you
tell us how devices are actually connected.  Also, where did the patch
come from?  With what comment?

At this point it may be relevant to note that Intel tells me that PCS has changed on -every- chip. So, ICH8 PCS register behaves differently from ICH7 and prior.

	Jeff



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