RE: Status of the LSI 2108

[James Shubin]

Hi Supermicro,

I'm looking for information on whether the LSI 2108 is fully supported
in the vanilla linux kernel, and any thoughts as to the quality/
robustness of the driver. The servers in question that I'm interested in
are the:
http://www.supermicro.com/products/system/2U/8026/SYS-8026B-6R.cfm?SAS=Y

Thank you for your time, feel free to see the below history for some
background.

James


On Fri, 2011-01-21 at 08:47 -0700, Unrein, Jason wrote:
> The latest vanilla kernel should have support for all of our second generation sas HBAs (6gb/s capable).  If there are any problems you can always download an updated driver from the www.lsi.com website.  
> 
> The Supermicro ftp site you sent is actually for our counterpart in LSI, Megaraid.  Since they run a different firmware, they have a different driver in the kernel (megaraid_sas) where as ours are mptlinux (Gen1, 3.0gb/s), mpt2sas (Gen2), mpt2sasbtm (Gen2 but for older 2.6 kernels).  We both use the same chip so Supermicro might be making it a little confusing.  You might see if they reference the chip as a Megaraid chip in any way or if it is always an LSI chip. It is possible to run it in both modes if all the hardware components are there.
> 
> It would probably be best to email Supermicro and get the details from them about the chip to confirm what you need.
> 
> -----Original Message-----
> From: James Shubin [mailto:purpleidea@xxxxxxxxx] 
> Sent: Thursday, January 20, 2011 5:57 PM
> To: Randy Dunlap
> Cc: scsi; linux-kernel@xxxxxxxxxxxxxxx; DL-MPT Fusion Linux
> Subject: Re: Status of the LSI 2108
> 
> Thanks Randy for sending me in the right direction.
> Hello linux-scsi and LSI. Any thoughts to the below question would be
> much appreciated!
> 
> James
> 
> 
> On Thu, 2011-01-20 at 15:34 -0800, Randy Dunlap wrote:
> > On Tue, 18 Jan 2011 23:25:53 -0500 James Shubin wrote:
> > 
> > > Hi,
> > > 
> > > I've been trying to find out if the LSI 2108 is fully supported in the
> > > vanilla kernel, and any thoughts as to the quality/robustness.
> > > 
> > > This seems to be the correct source:
> > > ftp://ftp.supermicro.nl/driver/SAS/LSI/2108/Driver/Linux/v04.31/
> > > however I'm not sure at all if it's maintained, or what. I would
> > > outright test this myself, however I haven't bought the servers yet
> > > 
> > > Thanks for your help,
> > > Please cc-me on replies.
> > 
> > Hi,
> > 
> > Probably better to ask on the linux-scsi mailing list [added].
> > Also added the lsi.com email address.
> > 
> > 
> > drivers/scsi/mpt2sas/mpt2sas_scsih.c contains this:
> > 
> > 	/* Liberator ~ 2108 */
> > 	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
> > 		PCI_ANY_ID, PCI_ANY_ID },
> > 	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
> > 		PCI_ANY_ID, PCI_ANY_ID },
> > 	{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
> > 		PCI_ANY_ID, PCI_ANY_ID },
> > 
> > so it looks like there is at least some basic support for the 2108.
> > 
> > 
> > ---
> > ~Randy
> > *** Remember to use Documentation/SubmitChecklist when testing your code ***
> 
> 


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