On 8/8/16 12:20 , Ian Collins wrote:
> On 08/ 9/16 01:41 AM, Robert Mustacchi wrote:
>> On 8/8/16 2:33 , Ian Collins wrote:
>>> On 08/ 8/16 05:29 AM, Robert Mustacchi wrote:
>>>> On 8/6/16 13:21 , Ian Collins wrote:
>>>>> On 7/08/16 2:46 am, Robert Mustacchi wrote:
>>>>>
>>>>>> Hmm, okay. So what is the output of dladm show-linkprop on that
>>>>>> device?
>>>>>> Also, can you grab the prtconf -d /dev/ixgbe<num> output for it?
>>>>> ixgbe0       adv_10gfdx_cap  r-   1              1              1,0
>>>>> ixgbe0       en_10gfdx_cap   rw   1              1              1,0
>>>> Okay, so importantly we think we're advertising 10g. I have a feeling
>>>> that this part may have a similar bug as the X550 did in the driver.
>>>> Here's a way to test this. Run these two commands, waiting a second or
>>>> two inbetween and then check the new advertised speed:
>>>>
>>>> dladm set-linkprop -p en_10gfdx_cap=0 ixgbe0
>>>>
>>>> dladm set-linkprop -p en_10gfdx_cap=1 ixgbe0
>>>>
>>>> I don't quite have a system in front of me, so not entirely sure that's
>>>> the right command. I'd expect each of those to cause the link to
>>>> reconfigure and hopefully we'll see a 10g speed after the second one.
>>> Indeed it does - I could see the indicators on the switch go green.
>>>
>>> # dladm show-linkprop -p speed ixgbe0
>>> LINK         PROPERTY        PERM VALUE          DEFAULT POSSIBLE
>>> ixgbe0       speed           r-   10000          10000          --
>>>
>> Okay, can I get the prtconf -d /dev/ixgbe0 output from that system?
> 
> pci15d9,1528 (pciex8086,1528) [Intel Corporation Ethernet Controller
> 10-Gigabit X540-AT2], instance #0
> 
> For reference, the PCIe card:
> 
> pci8086,1 (pciex8086,1528) [Intel Corporation Ethernet Controller
> 10-Gigabit X540-AT2], instance #0

Okay, thanks for providing that Ian. I'm trying to think through what
might cause this case and how we might better handle this. I'm reviewing
the PRM but will probably need some time on this one.

One question I have is on this particular box are those on-board ports
shared with the BMC? And are you using the dedicated BMC ports? I'm just
wondering if, like the issue Dale mentioned with the X550, because we
have a shared management port, the link was up and we never really reset
it properly in the driver to run at full speed vs. it having been
programmed for other, more limited speeds by the BMC.

Robert


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