ISCI bus_alloc_resource failed

[Bradley W. Dutton]

There are 2 devices in the same group so I passed both of them:
http://duttonbrosllc.com/misc/vmware_esxi_passthrough_config.png

At the time I wasn't sure if this was necessary but I just tried the  
Centos 7 VM and it worked without the SMBus device being passed  
through. I then tried the FreeBSD VM without SMBus and saw the same  
allocation error as before. Looks like the SMBus device is a red  
herring?

Thanks,
Brad


Quoting Scott Long <scottl at samsco.org>:

> This is really weird.  According to what you’ve posted, it’s  
> advertising itself as an SMBus controller with no BARs.  Maybe  
> you’re passing through the wrong device, or someone added the wrong  
> PCI device id data to the driver?
>
> Scott
>
>> On Sep 7, 2015, at 11:34 AM, Bradley W. Dutton  
>> <brad-fbsd-stable at duttonbros.com> wrote:
>>
>> Hi,
>>
>> I'm having trouble with the isci driver in both stable and current.  
>> I see the following dmesg in stable:
>>
>> isci0: <Intel(R) C600 Series Chipset SAS Controller (SATA mode)>  
>> port 0x5000-0x50ff mem 0xe7afc000-0xe7afffff,0xe7400000-0xe77fffff  
>> irq 19 at device 0.0 on pci11
>> isci: 1:000051 ISCI bus_alloc_resource failed
>>
>>
>> I'm running FreeBSD on VMWare ESXi 6 with vt-d passthrough of the  
>> isci devices, here is the relevant pciconf output:
>>
>> none2 at pci0:3:0:0:	class=0x0c0500 card=0x062815d9 chip=0x1d708086  
>> rev=0x06 hdr=0x00
>>    vendor     = 'Intel Corporation'
>>    device     = 'C600/X79 series chipset SMBus Controller 0'
>>    class      = serial bus
>>    subclass   = SMBus
>>    cap 10[90] = PCI-Express 2 endpoint max data 128(128) link x32(x32)
>>                 speed 5.0(5.0) ASPM disabled(L0s)
>>    cap 01[cc] = powerspec 3  supports D0 D3  current D0
>>    cap 05[d4] = MSI supports 1 message
>>    ecap 000e[100] = ARI 1
>> isci0 at pci0:11:0:0:	class=0x010700 card=0x062815d9 chip=0x1d6b8086  
>> rev=0x06 hdr=0x00
>>    vendor     = 'Intel Corporation'
>>    device     = 'C602 chipset 4-Port SATA Storage Control Unit'
>>    class      = mass storage
>>    subclass   = SAS
>>    cap 01[98] = powerspec 3  supports D0 D3  current D0
>>    cap 10[c4] = PCI-Express 2 endpoint max data 128(128) link x32(x32)
>>                 speed 5.0(5.0) ASPM disabled(L0s)
>>    cap 11[a0] = MSI-X supports 2 messages
>>                 Table in map 0x10[0x2000], PBA in map 0x10[0x3000]
>>    ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
>>    ecap 000e[138] = ARI 1
>>    ecap 0017[180] = TPH Requester 1
>>    ecap 0010[140] = SRIOV 1
>>
>>
>> I haven't tried booting on bare metal but running a linux distro  
>> (centos 7) in the same VM works without issue. Is is possible the  
>> SRIOV option is causing trouble? I don't see a BIOS option to  
>> disable that setting on this server like I have on some others. Any  
>> other ideas to get this working?
>>
>> Thanks,
>> Brad
>>
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