[dpdk-users] OS hang when running helloworld example with two I210 NICs

[Hunt, David]

On 21/3/2017 1:17 PM, Hunt, David wrote:
>
>
> On 21/3/2017 12:46 PM, Michal Michalowski wrote:
>> Hi David,
>>
>> Here is the output of lscpi after NICs after the are configured for 
>> DPDK:
>>
>> michal at michal-HP-Z200-Workstation:~$ sudo lspci -vs 18:00
>> 18:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
>> Connection (rev 03)
>>          Subsystem: Intel Corporation Ethernet Server Adapter I210-T1
>>          Physical Slot: 4
>>          Flags: fast devsel, IRQ 16
>>          Memory at f3300000 (32-bit, non-prefetchable) [size=1M]
>>          Memory at f3400000 (32-bit, non-prefetchable) [size=16K]
>>          [virtual] Expansion ROM at f8000000 [disabled] [size=1M]
>>          Capabilities: [40] Power Management version 3
>>          Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
>>          Capabilities: [70] MSI-X: Enable- Count=5 Masked-
>>          Capabilities: [a0] Express Endpoint, MSI 00
>>          Capabilities: [100] Advanced Error Reporting
>>          Capabilities: [140] Device Serial Number 
>> a0-36-9f-ff-ff-d5-07-3b
>>          Capabilities: [1a0] Transaction Processing Hints
>>          Kernel driver in use: uio_pci_generic
>>
>> michal at michal-HP-Z200-Workstation:~$ sudo lspci -vs 24:00
>> 24:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network 
>> Connection (rev 03)
>>          Subsystem: Intel Corporation Ethernet Server Adapter I210-T1
>>          Physical Slot: 1
>>          Flags: fast devsel, IRQ 16
>>          Memory at f3100000 (32-bit, non-prefetchable) [size=1M]
>>          Memory at f3200000 (32-bit, non-prefetchable) [size=16K]
>>          [virtual] Expansion ROM at f8200000 [disabled] [size=1M]
>>          Capabilities: [40] Power Management version 3
>>          Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
>>          Capabilities: [70] MSI-X: Enable- Count=5 Masked-
>>          Capabilities: [a0] Express Endpoint, MSI 00
>>          Capabilities: [100] Advanced Error Reporting
>>          Capabilities: [140] Device Serial Number 
>> a0-36-9f-ff-ff-d5-06-12
>>          Capabilities: [1a0] Transaction Processing Hints
>>          Kernel driver in use: uio_pci_generic
>>
>>
>> Cheers,
>> Michal
>
> Hi Michal,
>     When I bind my interfaces to igb_uio, I maintain the bus master 
> flag. Can you describe the hardware layout? Are you using any kind of 
> PCI multiplexer/riser?
>   Also, what is the output to 'lcpci -t'? That might give us some 
> additional interesting information.
> Regards,
> Dave 

Michal,
    I looked a bit deeper into the specs of the HP-Z200 workstation. It 
has only 1 PCI gen2, and the rest are PCI gen1. Only one of the 16x 
slots is gen2.
Could you confirm in which slots a single NIC will work? You can use 
"lspci -vvv -s 18:00 | grep LinkSta" to see the speeds when its installed.
Does a single NIC work in all slots?
Does it only work on the Gen2 16x slot?
If you put 2 NICS in 2 gen1 slots, do any of them work?
Regards,
Dave.