ISCI bus_alloc_resource failed

[Jim Harris]

On Mon, Sep 7, 2015 at 10:37 PM, Bradley W. Dutton <
brad-fbsd-stable at duttonbros.com> wrote:

> Quoting Jim Harris <jim.harris at gmail.com>:
>
> On Mon, Sep 7, 2015 at 7:29 PM, Bradley W. Dutton <
>> brad-fbsd-stable at duttonbros.com> wrote:
>>
>> 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?
>>>
>>>
>>> Looks like on ESXi we are using Xen HVM init ops, which do not enable
>> MSI.
>> And the isci driver is not reverting to INTx resource allocation when MSIx
>> vector allocation fails.  I've added reverting to INTx in the attached
>> patch - can you try once more?
>>
>> Thanks,
>>
>> -Jim
>>
>
> That patch worked. No allocation errors and the drives work as expected.
>
> Thanks again,
> Brad
>
>
Thanks Brad.  Committed as r287563 (pci_enable_busmaster) and r287564
(pci_alloc_msix check).