Hello,
I am testing testpmd on recent kernels (>= 3.15) and i have an IOMMU
problem (there are several commits around IOMMU in v3.15, they may be
related with this problem):
Hardware:
Platform: Intel S2600IP
CPU: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz
BIOS version: SE5C600.86B.02.03.0003.041
k-dev] DMAR errors when running testpmd
Hi Anatoly
It seems that the problem was Ubuntu distribution.
We switched to Ubuntu 14.04 Server Edition and sending packets through NIC
works like charm
Thanks
Tomasz
PS.
This is for google to index in case anyone else has similar problems If You are
Hi Anatoly
It seems that the problem was Ubuntu distribution.
We switched to Ubuntu 14.04 Server Edition and sending packets through NIC
works like charm
Thanks
Tomasz
PS.
This is for google to index in case anyone else has similar problems
If You are using:
HP ProLiant DL380p Gen8
HP SmartArray
Hi Anatoly
You guessed right...it doesn't
"show port stats all" always shows zeros.
Thanks
Tomasz
2014-05-07 17:08 GMT+02:00 Burakov, Anatoly :
> Hi Tomasz,
>
> > 2. dmesg messages appear only when I invoke "start tx_first" in testpmd
> app (so only when I try to send some packets)
>
> Does r
Hi Anatoly
I'm using dpdk-1.6.0r2 on Ubuntu 12.04 LTS with kernel 3.11.0-20-generic
#35~precise1-Ubuntu SMP
As for further investigation:
1. It doesn't matter whether DPDK uses 1GB or 2MB hugepages.
2. dmesg messages appear only when I invoke "start tx_first" in testpmd app
(so only when I try to
Hi Anatoly.
Yes I do have iommu=on set when booting kernel. This is one of
prerequisites to have SR-IOV running.
Below is the cmdline output
cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.11.0-20-generic
root=UUID=c70fa456-ee10-43e5-9f07-4dbb372dcee3 ro quiet splash iommu=pt
intel_iommu=on default_
Hi All
We're trying to run testpmd application on HP Proliant DL380P Gen 8 server.
We've enabled SR-IOV in BIOS and set appropriate flags when booting kernel
(iommu=pt intel_iommu=on)
The NIC we are using is 82599EB (2 ports, 10Gb SFP+)
When running testpmd application we always encouter DMAR err
Hi Tomasz,
> You guessed right...it doesn't
> "show port stats all" always shows zeros.
As I said earlier, such errors are usually related to errors in boot
parameters, but your kernel cmdline looks perfectly fine, so unless there's
something really odd happening, I can't see this being at faul
Hi Tomasz,
> 2. dmesg messages appear only when I invoke "start tx_first" in testpmd app
> (so only when I try to send some packets)
Does receiving packets work? I would assume it doesn't, but just making sure.
Best regards,
Anatoly Burakov
DPDK SW Engineer
Hi Tomasz,
>
> Here lies your mistake :-) Boot your kernel with iommu to "pt" (iommu=pt
> intel_iommu=on) and everything will work. Thje "pt" option enables IOMMU
> only for VM's while "on" sets up your whole system to work through IOMMU
> (including host devices). However, both of these options
Hi Tomasz,
Your words:
> We've enabled SR-IOV in BIOS and set appropriate flags when booting kernel
> (iommu=pt intel_iommu=on)
Your other words:
> Yes I do have iommu=on set when booting kernel.
Here lies your mistake :-) Boot your kernel with iommu to "pt" (iommu=pt
intel_iommu=on) and ever
Hi Tomasz
It looks like you have your kernel booted with iommu=on. Please check your
/proc/cmdline to make sure you didn't accidentally selected the wrong
bootloader entry.
> We're trying to run testpmd application on HP Proliant DL380P Gen 8 server.
> We've enabled SR-IOV in BIOS and set appro
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