Re: [RFC] IBM Power RAID driver (ipr)

[Christoph Hellwig <hch@infradead.org>]

On Tue, Jan 20, 2004 at 01:13:38PM -0600, Brian King wrote:
> > commands as in scsi commands or as in internal commands?
> 
> Internal commands. As you look through the driver, they will look very 
> similar, as the interface to the adapter maps to scsi pretty close. I 
> could use the mid-layer for these commands, but I would need some way to 
> send them when the adapter is self blocked and would probably need to 
> call scsi_add_host before the adapter is functional so I could send the 
> adapter initialization sequence.

Okay, so maybe we'll have to keep the internals commands without midlayer
interaction for the adapter intialization.

> The reason I have a pending_q is so that when I reset the adapter 
> without the mid-layer knowing about it, I need to fail back any 
> outstanding ops so they get retried as appropriate. I suppose a way 
> around this would be a mid-layer interface that an LLD could call which 
> would cause a host reset. Then the midlayer could drive the reset and 
> take care of doing the right thing with any outstanding ops.

Does scsi_reset_provider fit your needs?