Re: [Scst-devel] LSI/MPT target

[Doug D. <do...@ea...>]

Erik Habbinga wrote:
> Aravind Parchuri wrote:
>> I'm also trying this with an LSI SAS 3800X card. We do not have the
>> target mode firmware though - the mptsas driver always comes up
>> displaying "ioc0: SAS1068: Capabilities={Initiator}"
>>
>> Does anyone know where to get a SAS target mode firmware for these
>> chips? For example, the SCSI 1030T chips has a "Fusion-MPT_IT_FW"
>> download on it's webpage, but there's nothing similar for the SAS ICs.
>>
>> Here's a rundown of my experiments so far:
>> 1) Managed to compile the mpt-scst module for a 2.6.19 kernel. I had
>> to 
>> change some minor things, like config.h->autoconf.h, and hack up a new
>> Makefile because I didn't have the time to make the existing one work
>> on 
>> my build system.
>>
>> 2) Loaded the module:
>> modprobe scst
>> modprobe scst_vdisk
>>
>> echo "open disk1 /vdisks/disk1" > /proc/scsi_tgt/vdisk/vdisk echo
>> "add disk1 1" > /proc/scsi_tgt/groups/Default/devices 
>>
>> modprobe mpt_scst
>> modprobe mptsas
>>
>> 3) Enabled all debug:
>> echo "all"> /proc/scsi_tgt/trace_level
>> echo "all" > /proc/scsi_tgt/mpt_scst/trace_level
>>
>> 3) Enabled target mode in mpt-scst:
>> echo "target:enable" > /proc/scsi_tgt/mpt_scst/0
>>
>> 4) Powered on externally connected SAS Initiator (also an LSI SAS
>> 3800X 
>> card). The initiator cannot see any devices, though I see the correct
>> phys showing their status as connected at 3 GBps in the Windows GUI.
>> The 
>> mpt-scst module also seems to detect the SAS connections:
>>
>> [0]: ENTRY stm_event_process
>> ioc0 event = 22, ack = 0, length = 2
>> ioc0 data[0] = 00ff0001
>> ioc0 data[1] = 00000000
>> [0]: EXIT stm_event_process
>> [0]: ENTRY stm_event_process
>> ioc0 Phy 0 Handle 1 is now online at 3.0 Gb
>> [0]: EXIT stm_event_process
>>
>> I'll update this thread if I make any further progress. If anyone has
>> tried this before, I would love some pointers. Thanks,
>>
>> Aravind.
>>
>>
>> do...@ea... wrote:
>>> I am trying to get the LSI/MPT target to work over SAS.  The README
>>> for MPT implies that it is being maintained by Erik Habbinga with an
>>> email address at Inphase Tech.  I have not seen Erik post here
>>> recently, so I was wondering if this is still the best contact, or
>>> if I should just push my long post to the list.
>>>
>>> Thank you for your help.
>>>
>>> Doug Dumitru
>>>
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> 
> I'm still here, and I'm still working with the LSI SCST driver for my project.  However, I haven't yet tried to use a Fibre Channel
> or SAS board, only parallel SCSI.  I don't know where to get SAS target firmware.  It sounds like you've looked at the LSI website,
> which is where I'd be searching also.
> 
> Erik

I have an email in trying to find an "OEM support" contact.  My request 
was forwarded to an engineer, but I have not heard yet.  I will let you 
know if I hear anything.

Doug Dumitru