Re: [PATCH v2 8/8] scsi: ufs: connect to RPMB subsystem

[Joao Pinto]

Hi,

On 4/7/2016 10:15 PM, Winkler, Tomas wrote:
> On Wed, 2016-04-06 at 09:51 +0100, Joao Pinto wrote:
>> Hi!
>>
>> On 4/4/2016 12:11 PM, Tomas Winkler wrote:
>>> Register UFS RPMB LUN with the RPMB subsystem and provide
>>> implementation for the RPMB access operations. RPMB partition is
>>> accessed via a sequence of security protocol in and security
>>> protocol
>>> out commands with UFS specific parameters. This multi step process
>>> is
>>> abstracted into 4 basic RPMB commands.
>>
>> [snip]
>>
>>>  	 * "UFS device" W-LU.
>>>  	 */
>>>  	struct scsi_device *sdev_ufs_device;
>>> +	struct scsi_device *sdev_ufs_rpmb;
>>>  
>>>  	enum ufs_dev_pwr_mode curr_dev_pwr_mode;
>>>  	enum uic_link_state uic_link_state;
>>>
>>
>> I have a UFS device emulator that has the RPMB capability. What are
>> the expected
>> good results for me to validate?
> 
> Hi Joao, thanks for that. I'm attaching an archive with few basic
> samples via user space interface. 
> You should run the program key first (program-key.sh), just don't do it
> on a real device it's one in life time operation. 
> 

Managed to cross-compile to ARC and execute your test app in my platform. I made
it in Buildroot, so I have the patches to enable the tool cross-compilation if
necessary in the future.

The tool execution gives no errors, but also no info. I suggest you had success
info and maybe some statistic (e.g. bytes read or written).

> Thanks
> Tomas
> 

Thanks,
Joao