Re: [PATCH] scsi: Allow 64-bit LUNs during report lun scan

[Jeremy Linton <jlinton@tributary.com>]

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On 2/13/2013 9:06 AM, Hannes Reinecke wrote:
> So add a new flag 'support_64bit_luns' to the scsi host and modify report
> lun scan to not check for max_luns during scanning if that flag is set.
> This will get rid of the

	Along these lines, I don't think the scsilun_to_int() and int_to_scsilun()
routines are correct for > 2^14  luns. SAM  4.6 defines bits 6,7 of byte zero
in the LU representation format as the address method. Which when set to 00b
limits it to 256 luns but the overflow into the bus ID probably works for some
devices.

	Those routines should probably select/detect an alternative address method
for luns > 256.

	Or am I missing something?







	




	
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