[SLOF] [PATCH] scsi: implement read-capacity-16

[Alexey Kardashevskiy]

On 10/10/16 15:21, Nikunj A Dadhania wrote:
> Alexey Kardashevskiy <aik at ozlabs.ru> writes:
> 
>> On 23/09/16 04:13, Nikunj A Dadhania wrote:
>>> For disks bigger than 2TB(512B sector size), read-capacity-10 would fail
>>> and return FFFFFFFF, as it only has 4byte block address field. Detect
>>> this and use read-capacity-16 which returns 8byte block address.
>>>
>>> Signed-off-by: Nikunj A Dadhania <nikunj at linux.vnet.ibm.com>
>>> ---
>>>  slof/fs/scsi-disk.fs | 19 +++++++++++++++++++
>>>  1 file changed, 19 insertions(+)
>>>
>>> diff --git a/slof/fs/scsi-disk.fs b/slof/fs/scsi-disk.fs
>>> index 1978471..d4a774b 100644
>>> --- a/slof/fs/scsi-disk.fs
>>> +++ b/slof/fs/scsi-disk.fs
>>> @@ -121,6 +121,20 @@ CREATE cdb 10 allot
>>>      drop scratch scsi-get-capacity-10 1 +
>>>  ;
>>>  
>>> +: read-capacity-16 ( -- blocksize #blocks )
>>> +    \ Now issue the read-capacity-16 command
>>> +    scsi-disk-debug? IF
>>> +        ." SCSI-DISK: read-capacity-16 " .s cr
>>> +    THEN
>>> +    \ Make sure that there are zeros in the buffer in case something goes wrong:
>>> +    scratch 20 erase
>>
>>
>> Thanks, applied the version from https://patchwork.ozlabs.org/patch/675736/
>> , somehow it have not received it in my mailbox :-/
> 
> Hmm.. that is strange, will cc you next time onwards.

No need, false alarm, found it :)


-- 
Alexey