Re: [PATCH 1/1] ipr: Fix HDIO_GET_IDENTITY oops for SATA devices

[Jeff Garzik <jeff@garzik.org>]

James Bottomley wrote:
> The problems seem to come at us from the 1:1 relationship between a
> 'port' and a host in libata.  Is there no way we can perhaps recast what
> we think of as a phy as what libata thinks of as a link and thus keep us
> at one host per actual physical device?


It's difficult to do that universally, but OTOH it would be quite 
reasonable to do that for modern SATA controllers, leaving the older 
master/slave controllers as one-host-per-port.

I've been wanting to do that for a while, even.

The main thing holding me back is not any technical issue, but desire to 
avoid breakage caused by abrupt topology change.

	Jeff