[elrepo] CentOS/Kernel 3.18/Thunderbolt2

[Israel Brewster]

On Jan 26, 2015, at 6:38 AM, Alan Bartlett <ajb at elrepo.org> wrote:

> On 26 January 2015 at 01:25, israel <israel at ravnalaska.net> wrote:
>> I just got a new SuperMicro box with a AOC-TBT-DSL5320 Thunderbolt2 card
>> pre-installed. I installed CentOS 6.5, ran yum update, and then, because to
>> my understanding at least, thunderbolt support was added in kernel 3.10, I
>> went ahead and updated to kernel 3.18 from ELRepo. This all appeared to work
>> fine, and my system came back up running kernel 3.18 as expected, but when I
>> plugged in a thunderbolt hard drive there was no indication that CentOS
>> recognized the drive - even after a re-boot. Am I missing something, such as
>> needing to install a special driver for this thunderbolt card, or the drive
>> being identified differently than sd? Or does Linux/CentOS simply not
>> support Thunderbolt2? Thanks.
> 
> Am I correct in assuming that the Thunderbolt2 card is a PCI bus
> device? If so, what are the relevant lines that are output by a lspci
> -nn command?

Yeah, the thunderbolt2 card plugs into a PCI slot, as well as having a cable running to the GPIO headers on the motherboard. That said, nothing jumps out at me from the output of that command. There are a number of references to a PCI bridge, a Core i7 I/O APIC, ISA bridge [0601]: Intel Corporation C610/X99 series chipset LPC Controller, and a generic "Intel Corporation Device" system peripheral, but other than that it looks like most of the things listed are not relevant.

I did find reference to running an egrep on the /boot/config-3.18.3-1.el6.elrepo.x86_64 file, which returns the line "CONFIG_THUNDERBOLT is not set", however, which would seem to indicate that the ELRepo kernel build is simply not compiled with Thunderbolt support. So I may just have to try compiling the kernel myself or the like. Dunno.


-----------------------------------------------
Israel Brewster
Systems Analyst II
Ravn Alaska
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7293
-----------------------------------------------


> 
> Alan.
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