On 06/27/2014 09:12 AM, Bart Van Assche wrote:
On 06/25/14 15:27, Hannes Reinecke wrote:
scsilun_to_int() has an error which prevents it from generating
correct LUN numbers for 64bit values.
Also we should remove the misleading comment about portions of
the LUN being ignored; the initiator should treat the LUN as
an opaque value.
And, finally, the example given should use the correct
prefix (here: extended flat space addressing scheme).
I'm still not enthusiast about the byte reordering by scsilun_to_int()
for extended logical unit addressing. But I can confirm that this patch
passed the test that failed with the previous version of the 64-bit LUN
patch series. So if you want you can add "Tested-by: Bart van Assche
<bvanassche@xxxxxxx>".
I can somewhat agree with your sentiment.
It should be possible eg to keep the LUN in native format (as now
both have the same length) and only use scsilun_to_int() when
displaying the LUN number.
But this needs a careful review, as occasionally the code might want
to traverse the LUN numbers by simply incrementing it, which of
course won't work anymore then.
Which was the main reason why I didn't do so in the first place.
Now, however, the necessary bits are done, so we should have a look
at that. Let's see ...
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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