[SCSI] SCSI block devices larger then 2TB

[Michal Feix]

Greetings!

Current aic79xxx driver doesn't see SCSI devices larger, then 2TB. It 
fails with READ CAPACITY(16) command. As far as I can understand, we 
already have LBD support in kernel for some time now. So it's only the 
drivers, that need to be fixed? LSI driver is the only one I found 
working with devices over 2TB; I couldn't test any other driver, as I 
don't have the hardware. Is it really so bad, that only LSI chipset and 
maybe few others are capable of seeng such devices?

My kernel output with aic79xxx follows:

scsi1 : Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev 1.3.11
heracles kernel:         <Adaptec AIC7902 Ultra320 SCSI adapter>
heracles kernel:         aic7902: Ultra320 Wide Channel B, SCSI Id=7, 
PCI-X 101-133Mhz, 512 SCBs
scsi1:A:0:0: Tagged Queuing enabled.  Depth 64
 target1:0:0: Beginning Domain Validation
 target1:0:0: wide asynchronous.
 target1:0:0: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 127)
 target1:0:0: Ending Domain Validation
sde : very big device. try to use READ CAPACITY(16).
sde : READ CAPACITY(16) failed.
sde : status=0, message=00, host=5, driver=00
sde : use 0xffffffff as device size
SCSI device sde: 4294967296 512-byte hdwr sectors (2199023 MB)
SCSI device sde: drive cache: write back
sde : very big device. try to use READ CAPACITY(16).
sde : READ CAPACITY(16) failed.
sde : status=0, message=00, host=5, driver=00
sde : use 0xffffffff as device size
SCSI device sde: 4294967296 512-byte hdwr sectors (2199023 MB)
SCSI device sde: drive cache: write back
 sde: unknown partition table
Attached scsi disk sde at scsi1, channel 0, id 0, lun 0

--
Michal Feix
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