* PCI/IDE generic IDE driver + bus master DMA logic errors
@ 2006-10-04 10:07 girish
2006-10-04 11:17 ` Alan Cox
0 siblings, 1 reply; 3+ messages in thread
From: girish @ 2006-10-04 10:07 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-ide
our hardware guys are designing an pci/ide controller which has
interrupt wrapper such that the ide & bus master interrupts are
packaged & delivered together.
according to current linux ide sub-system believe i have to do
something like implement ide_ack_intr(). quite clear. would like to
know how to escalate bus-master dma or device errors, on return from
ide_ack_intr?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PCI/IDE generic IDE driver + bus master DMA logic errors
2006-10-04 10:07 PCI/IDE generic IDE driver + bus master DMA logic errors girish
@ 2006-10-04 11:17 ` Alan Cox
2006-10-04 11:06 ` girish
0 siblings, 1 reply; 3+ messages in thread
From: Alan Cox @ 2006-10-04 11:17 UTC (permalink / raw)
To: girish; +Cc: linux-kernel, linux-ide
Ar Mer, 2006-10-04 am 19:07 +0900, ysgrifennodd girish:
> our hardware guys are designing an pci/ide controller which has
> interrupt wrapper such that the ide & bus master interrupts are
> packaged & delivered together.
All the SFF8038i/D1510 style devices have a single interrupt line for
IDE and for bus mastering interrupts. If your device behaves in
accordance to D1510 the default code ought to work.
Alan
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PCI/IDE generic IDE driver + bus master DMA logic errors
2006-10-04 11:17 ` Alan Cox
@ 2006-10-04 11:06 ` girish
0 siblings, 0 replies; 3+ messages in thread
From: girish @ 2006-10-04 11:06 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel, linux-ide
On Oct 4, 2006, at 8:17 PM, Alan Cox wrote:
> Ar Mer, 2006-10-04 am 19:07 +0900, ysgrifennodd girish:
>> our hardware guys are designing an pci/ide controller which has
>> interrupt wrapper such that the ide & bus master interrupts are
>> packaged & delivered together.
>
> All the SFF8038i/D1510 style devices have a single interrupt line for
> IDE and for bus mastering interrupts. If your device behaves in
> accordance to D1510 the default code ought to work.
>
> Alan
thanks alan. i will have look into it.
one more question - we are planning two channel bus-mastering design.
whether linux ide sub-system will support simultaneous dma kick
sequences?
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2006-10-04 11:06 UTC | newest]
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2006-10-04 10:07 PCI/IDE generic IDE driver + bus master DMA logic errors girish
2006-10-04 11:17 ` Alan Cox
2006-10-04 11:06 ` girish
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