mfi timeouts

[Vincent Hoffman]

On 09/11/2011 14:39, John Baldwin wrote:
> On Tuesday, November 08, 2011 6:39:07 pm Vincent Hoffman wrote:
>> On 08/11/2011 22:24, Vincent Hoffman wrote:
>>> On 08/11/2011 19:50, John Baldwin wrote:
>>>> On Wednesday, November 02, 2011 5:47:38 pm Vincent Hoffman wrote:
>>>>> On 28/10/2011 04:14, Jan Mikkelsen wrote:
>>>>>> Hi,
>>>>>>
>>>>>> There is a patch linked to from this PR, which seems very similar:
>>>>>>
>>>>>> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/140416
>>>>>>
>>>>>> http://lists.freebsd.org/pipermail/freebsd-scsi/2011-March/004839.html
>>>>>>
>>>>>> The problem is also consistent with running mfiutil clearing the problem.
>>>>>>
>>>>>> I'm about to deploy mfi controllers in a similar configuration, so I'd be 
>>>> very curious about whether the patch fixes the problem for you.
>>>>> The patch you linked to seems to have removed the stalls, although I
>>>>> have only had it running for a day. I'll post if it stalls again though.
>>>>>
>>>>> I did manage to scrounge the use of a Dell r410 with a
>>>>> LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] (rev 05)
>>>>> Badged as Dell PERC H700 Adapter
>>>>>
>>>>> to test out the patch I originally found but had the same issue as this post
>>>>>
>>>>> http://lists.freebsd.org/pipermail/freebsd-stable/2011-September/063821.html
>>>>>
>>>>>
>>>>> I couldnt get the dell to stall in the first place either though so it
>>>>> could be a specific firmware version that the issue.
>>>>>
>>>>> Anyway thanks for the pointers.
>>>> Hmm, did you try the patch I had posted from that earlier thread?  It had
>>>> two changes in it, one was similar to the patch in the PR, the second added
>>>> MSI-X support.  I've since tweaked it to make the MSI-X support off by
>>>> default but possible to enable via loader.conf.  Would you be willing to
>>>> try the updated patch at www.freebsd.org/~jhb/patches/mfi.patch?
>>> Hi,
>>> yes I tried the patch you posted originally, unfortunately the dell
>>> never finished booting either. The Supermicro is now in production but
>>> I'll take the dell up to 9-STABLE and try your updated patch.
>>>
>> The patch didnt apply quite cleanly for 9-STABLE, 1 reject as it had
>> already been applied.
> Odd, it's against stock head, so I don't know why it would have failed to
> apply.
>  
I think it was http://svnweb.freebsd.org/base?view=revision&revision=227309

no big deal.
>> I have rebooted the dell and it seems happy with the new patch (msi
>> disabled.)
> Okay, good.  I'll commit the non-MSI bits at least and get them merged into
> 9.0 if possible.
>
>> Booting with
>> hw.mfi.msix=1 in /boot/loader.conf causes the timeouts again and stops
>> the boot from completing.
> Ok.  Can you try changing it to use MSI instead of MSI-X?  Just edit the
> mfi_pci.c call and replace 'pci_alloc_msix' with 'pci_alloc_msi'.
>
I'll have a try.

Vince