Re: [PATCH 2.6.13 5/14] sas-class: sas_discover.c Discover process (end devices)

Patrick Mansfield
2005-09-12T16:45:58Z

On Mon, Sep 12, 2005 at 09:57:21AM -0500, James Bottomley wrote:

> be free to increase it if necessary. Note: you do actually need either
> an array with more than two levels of nesting actually to need the
> increase and no-one actually seems to have one of these yet.

That is not correct, I posted before on this, the address method is in the
high bits of the 8 byte LUN and tells how to "interpret" the LUN value.
You can't convert from an int to 8 byte LUN (without any other
information) and set these bits. See SAM-4 in (or near) section 4.9.7.

So some storage devices that want to use addressing methods other than 00b
don't because we do not have 8 byte LUN support in linux, and then we have
other problems because of this.

-- Patrick Mansfield