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Date:      Mon, 07 Sep 2015 19:29:09 -0700
From:      "Bradley W. Dutton" <brad-fbsd-stable@duttonbros.com>
To:        Scott Long <scottl@samsco.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: ISCI bus_alloc_resource failed
Message-ID:  <20150907192909.Horde.sDaQSSkewl4vEHh-rJLXcfb@duttonbros.com>
In-Reply-To: <514DD6B2-EBC3-43F7-8C2A-F8A1C77463F0@samsco.org>
References:  <20150907103435.Horde.z4GgTZD3-chqVxPgZhMklyM@duttonbros.com> <514DD6B2-EBC3-43F7-8C2A-F8A1C77463F0@samsco.org>

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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 =20
Centos 7 VM and it worked without the SMBus device being passed =20
through. I then tried the FreeBSD VM without SMBus and saw the same =20
allocation error as before. Looks like the SMBus device is a red =20
herring?

Thanks,
Brad


Quoting Scott Long <scottl@samsco.org>:

> This is really weird.  According to what you=E2=80=99ve posted, it=E2=80=
=99s =20
> advertising itself as an SMBus controller with no BARs.  Maybe =20
> you=E2=80=99re passing through the wrong device, or someone added the w=
rong =20
> PCI device id data to the driver?
>
> Scott
>
>> On Sep 7, 2015, at 11:34 AM, Bradley W. Dutton =20
>> <brad-fbsd-stable@duttonbros.com> wrote:
>>
>> Hi,
>>
>> I'm having trouble with the isci driver in both stable and current. =20
>> I see the following dmesg in stable:
>>
>> isci0: <Intel(R) C600 Series Chipset SAS Controller (SATA mode)> =20
>> port 0x5000-0x50ff mem 0xe7afc000-0xe7afffff,0xe7400000-0xe77fffff =20
>> 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 =20
>> isci devices, here is the relevant pciconf output:
>>
>> none2@pci0:3:0:0:	class=3D0x0c0500 card=3D0x062815d9 chip=3D0x1d708086=
 =20
>> rev=3D0x06 hdr=3D0x00
>>    vendor     =3D 'Intel Corporation'
>>    device     =3D 'C600/X79 series chipset SMBus Controller 0'
>>    class      =3D serial bus
>>    subclass   =3D SMBus
>>    cap 10[90] =3D PCI-Express 2 endpoint max data 128(128) link x32(x3=
2)
>>                 speed 5.0(5.0) ASPM disabled(L0s)
>>    cap 01[cc] =3D powerspec 3  supports D0 D3  current D0
>>    cap 05[d4] =3D MSI supports 1 message
>>    ecap 000e[100] =3D ARI 1
>> isci0@pci0:11:0:0:	class=3D0x010700 card=3D0x062815d9 chip=3D0x1d6b808=
6 =20
>> rev=3D0x06 hdr=3D0x00
>>    vendor     =3D 'Intel Corporation'
>>    device     =3D 'C602 chipset 4-Port SATA Storage Control Unit'
>>    class      =3D mass storage
>>    subclass   =3D SAS
>>    cap 01[98] =3D powerspec 3  supports D0 D3  current D0
>>    cap 10[c4] =3D PCI-Express 2 endpoint max data 128(128) link x32(x3=
2)
>>                 speed 5.0(5.0) ASPM disabled(L0s)
>>    cap 11[a0] =3D MSI-X supports 2 messages
>>                 Table in map 0x10[0x2000], PBA in map 0x10[0x3000]
>>    ecap 0001[100] =3D AER 1 0 fatal 0 non-fatal 1 corrected
>>    ecap 000e[138] =3D ARI 1
>>    ecap 0017[180] =3D TPH Requester 1
>>    ecap 0010[140] =3D SRIOV 1
>>
>>
>> I haven't tried booting on bare metal but running a linux distro =20
>> (centos 7) in the same VM works without issue. Is is possible the =20
>> SRIOV option is causing trouble? I don't see a BIOS option to =20
>> disable that setting on this server like I have on some others. Any =20
>> other ideas to get this working?
>>
>> Thanks,
>> Brad
>>
>> _______________________________________________
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>> https://lists.freebsd.org/mailman/listinfo/freebsd-stable
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