Issue with l2fwd in kvm guest

Issue with l2fwd in kvm guest

[Ajith Adapa]

Hi,

I am just trying out DPDK in a fedora 18 KVM guest and have an issue when I
am trying l2fwd application.

I am binding eth1, eth2 interfaces using below commands

./igb_uio_bind.py --bind=igb_uio eth1
./igb_uio_bind.py --bind=igb_uio eth2

When I run l2fwd app I get following error

./l2fwd -c 1 -n 4
EAL: Cannot read numa node link for lcore 0 - using physical package id
instead
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Setting up memory...
EAL: cannot open /proc/self/numa_maps, consider that all memory is in
socket_id 0
EAL: Ask a virtual area of 0x18800000 bytes
EAL: Virtual area found at 0x9dc00000 (size = 0x18800000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x9d400000 (size = 0x400000)
EAL: Ask a virtual area of 0x400000 bytes
EAL: Virtual area found at 0x9cc00000 (size = 0x400000)
EAL: Requesting 100 pages of size 4MB from socket 0
EAL: TSC frequency is ~3191735 KHz
EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
clock cycles !
EAL: Master core 0 is ready (tid=b7782800)
EAL: PCI device 0000:00:03.0 on NUMA socket -1
EAL:   probe driver: 1af4:1000 rte_virtio_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping
EAL: PCI device 0000:00:07.0 on NUMA socket -1
EAL:   probe driver: 8086:100e rte_em_pmd
EAL:   PCI memory mapped at 0xb7732000
EAL: PCI device 0000:00:08.0 on NUMA socket -1
EAL:   probe driver: 8086:100e rte_em_pmd
EAL:   PCI memory mapped at 0xb7712000
Skipping disabled port 0
Skipping disabled port 1
EAL: Error - exiting with code: 1
  Cause: All available ports are disabled. Please set portmask.

Dmesg logs after binding eth1 and eth2 to igb_uio

[    5.700591] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: RX
[    5.733457] e1000: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: RX
[   55.835017] igb_uio: module verification failed: signature and/or
required key missing - tainting kernel
[   55.835888] Use MSIX interrupt by default
[   56.035098] igb_uio 0000:00:07.0: setting latency timer to 64
[   56.035123] fail to enable pci msix, or not enough msix entries
[   56.035492] uio device registered with irq a
[   56.184789] igb_uio 0000:00:08.0: setting latency timer to 64
[   56.184811] fail to enable pci msix, or not enough msix entries
[   56.184969] uio device registered with irq b
[  589.675041] Bits 55-60 of /proc/PID/pagemap entries are about to stop
being page-shift some time soon. See the linux/Documentation/vm/pagemap.txt
for details.

Can anyone point me to right direction regarding where I am doing the
mistake ?

Regards,
Ajith

Re: Issue with l2fwd in kvm guest

[Vivek Soni]

Ajith,
You are missing "-p PORTMASK" command line argument. Since you are binding
two ports to IGB_UIO, you should add -p 0x3 to the command line.
You can check the example command from sample applications user guide.
$ ./build/l2fwd -c 1 -n 4 -- -p 3

Regards,
Vivek


On Fri, Apr 11, 2014 at 9:34 AM, Ajith Adapa <ajith.adapa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Hi,
>
> I am just trying out DPDK in a fedora 18 KVM guest and have an issue when I
> am trying l2fwd application.
>
> I am binding eth1, eth2 interfaces using below commands
>
> ./igb_uio_bind.py --bind=igb_uio eth1
> ./igb_uio_bind.py --bind=igb_uio eth2
>
> When I run l2fwd app I get following error
>
> ./l2fwd -c 1 -n 4
> EAL: Cannot read numa node link for lcore 0 - using physical package id
> instead
> EAL: Detected lcore 0 as core 0 on socket 0
> EAL: Setting up memory...
> EAL: cannot open /proc/self/numa_maps, consider that all memory is in
> socket_id 0
> EAL: Ask a virtual area of 0x18800000 bytes
> EAL: Virtual area found at 0x9dc00000 (size = 0x18800000)
> EAL: Ask a virtual area of 0x400000 bytes
> EAL: Virtual area found at 0x9d400000 (size = 0x400000)
> EAL: Ask a virtual area of 0x400000 bytes
> EAL: Virtual area found at 0x9cc00000 (size = 0x400000)
> EAL: Requesting 100 pages of size 4MB from socket 0
> EAL: TSC frequency is ~3191735 KHz
> EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
> clock cycles !
> EAL: Master core 0 is ready (tid=b7782800)
> EAL: PCI device 0000:00:03.0 on NUMA socket -1
> EAL:   probe driver: 1af4:1000 rte_virtio_pmd
> EAL:   0000:00:03.0 not managed by UIO driver, skipping
> EAL: PCI device 0000:00:07.0 on NUMA socket -1
> EAL:   probe driver: 8086:100e rte_em_pmd
> EAL:   PCI memory mapped at 0xb7732000
> EAL: PCI device 0000:00:08.0 on NUMA socket -1
> EAL:   probe driver: 8086:100e rte_em_pmd
> EAL:   PCI memory mapped at 0xb7712000
> Skipping disabled port 0
> Skipping disabled port 1
> EAL: Error - exiting with code: 1
>   Cause: All available ports are disabled. Please set portmask.
>
> Dmesg logs after binding eth1 and eth2 to igb_uio
>
> [    5.700591] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow
> Control: RX
> [    5.733457] e1000: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow
> Control: RX
> [   55.835017] igb_uio: module verification failed: signature and/or
> required key missing - tainting kernel
> [   55.835888] Use MSIX interrupt by default
> [   56.035098] igb_uio 0000:00:07.0: setting latency timer to 64
> [   56.035123] fail to enable pci msix, or not enough msix entries
> [   56.035492] uio device registered with irq a
> [   56.184789] igb_uio 0000:00:08.0: setting latency timer to 64
> [   56.184811] fail to enable pci msix, or not enough msix entries
> [   56.184969] uio device registered with irq b
> [  589.675041] Bits 55-60 of /proc/PID/pagemap entries are about to stop
> being page-shift some time soon. See the linux/Documentation/vm/pagemap.txt
> for details.
>
> Can anyone point me to right direction regarding where I am doing the
> mistake ?
>
> Regards,
> Ajith
>