On Wed, Jun 06, 2007 at 07:21:22PM +0900, Tejun Heo wrote:
> sata_promise uses two different command modes - packet and TF. Packet
> mode is intelligent low-overhead mode while TF is the same old
> taskfile interface. As with other advanced interface (ahci/sil24),
> ATA_TFLAG_POLLING has no effect in packet mode. However, PIO commands
> are issued using TF interface in polling mode, so pdc_interrupt()
> considers interrupts spurious if ATA_TFLAG_POLLING is set.
>
> This is broken for polling NODATA commands because command is issued
> using packet mode but the interrupt handler ignores it due to
> ATA_TFLAG_POLLING. Fix pdc_qc_issue_prot() such that ATA/ATAPI NODATA
> commands are issued using TF interface if ATA_TFLAG_POLLING is set.
>
> This patch fixes detection failure introduced by polling SETXFERMODE.
>
> Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
> ---
> David, please verify this patch. Mikael, does this look okay? Please
> push this upstream after David and Mikael's ack.
>
> (This repost is identical to the previous posting but it's now on the
> correct thread.)
Acked-by: Jeff Garzik <[EMAIL PROTECTED]>
Tejun, would you mind pushing this upstream to Linus/Andrew?
I'm travelling this week, and my home firewall doesn't like me.
It is probably easier for you than me.
Jeff
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