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SubjectRe: [RFT] major libata update
Tejun Heo <htejun@gmail.com> wrote:
>
> Tejun Heo wrote:
> > Andrew Morton wrote:
> >> No. In fact, it doesn't even work with the 2.6.17-rc4-mm1 lineup plus
> >> the
> >> latest git-libata-all. It needs this tweak:
> >>
> >> --- devel/drivers/scsi/ata_piix.c~2.6.17-rc4-mm1-ich8-fix
> >> 2006-05-16 18:36:12.000000000 -0700
> >> +++ devel-akpm/drivers/scsi/ata_piix.c 2006-05-16
> >> 18:36:12.000000000 -0700
> >> @@ -542,6 +542,14 @@ static unsigned int piix_sata_probe (str
> >> port = map[base + i];
> >> if (port < 0)
> >> continue;
> >> + if (ap->flags & PIIX_FLAG_AHCI) {
> >> + /* FIXME: Port status of AHCI controllers
> >> + * should be accessed in AHCI memory space. */
> >> + if (pcs & 1 << port)
> >> + present_mask |= 1 << i;
> >> + else
> >> + pcs &= ~(1 << port);
> >> + }
> >> if (ap->flags & PIIX_FLAG_IGNORE_PCS || pcs & 1 << (4 + port))
> >> present_mask |= 1 << i;
> >> else
>
> The above patch doesn't do anything.

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 ;)
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