[dpdk-users] i40e with DPDK exits abruptly in rte_eal_init()

Saurabh Mishra saurabh.globe at gmail.com
Fri Jan 22 18:29:44 CET 2016
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Hi,

Thanks Thomas.. So this is the error we see on i40e PCI-passthrough of
whole NIC:


*Secondary Process:*

EAL: Detected lcore 0 as core 0 on socket 0

EAL: Detected lcore 1 as core 0 on socket 0

EAL: Support maximum 128 logical core(s) by configuration.

EAL: Detected 2 lcore(s)

EAL: Setting up physically contiguous memory...

EAL: Analysing 1024 files

EAL: Mapped segment 0 of size 0x22800000

EAL: Mapped segment 1 of size 0x200000

EAL: Mapped segment 2 of size 0x200000

EAL: Mapped segment 3 of size 0x57600000

EAL: Mapped segment 4 of size 0x400000

EAL: Mapped segment 5 of size 0x400000

EAL: Mapped segment 6 of size 0x400000

EAL: Mapped segment 7 of size 0x200000

EAL: Mapped segment 8 of size 0x2200000

EAL: Mapped segment 9 of size 0x200000

EAL: Mapped segment 10 of size 0x800000

EAL: Mapped segment 11 of size 0x600000

EAL: Mapped segment 12 of size 0x800000

EAL: Mapped segment 13 of size 0xa00000

EAL: Mapped segment 14 of size 0x400000

EAL: Mapped segment 15 of size 0x200000

EAL: Mapped segment 16 of size 0x200000

EAL: Mapped segment 17 of size 0x200000

EAL: Mapped segment 18 of size 0x200000

EAL: memzone_reserve_aligned_thread_unsafe(): memzone <RG_MP_log_history>
already exists

RING: Cannot reserve memory

EAL: TSC frequency is ~1799997 KHz

EAL: Master lcore 1 is ready (tid=f7fe78c0;cpuset=[1])

EAL: PCI device 0000:03:00.0 on NUMA socket 0

EAL:   probe driver: 15ad:7b0 rte_vmxnet3_pmd

EAL:   Not managed by a supported kernel driver, skipped

EAL: PCI device 0000:1b:00.0 on NUMA socket 0

EAL:   probe driver: 8086:1572 rte_i40e_pmd

EAL:   PCI memory mapped at 0x7fff6f1f3000

EAL:   PCI memory mapped at 0x7ffff7faa000

EAL: Cannot mmap device resource file
/sys/bus/pci/devices/0000:1b:00.0/resource3 to address: 0x7ffff7fac000

EAL: Error - exiting with code: 1

  Cause: Requested device 0000:1b:00.0 cannot be used



# ./dpdk-2.2.0/tools/dpdk_nic_bind.py --status


Network devices using DPDK-compatible driver

============================================

0000:1b:00.0 'Device 1572' drv=uio_pci_generic unused=i40e


Network devices using kernel driver

===================================

0000:03:00.0 'VMXNET3 Ethernet Controller' if=eth0 drv=vmxnet3
unused=uio_pci_generic *Active*


Other network devices

=====================

<none>


# grep Huge /proc/meminfo

AnonHugePages:    118784 kB

HugePages_Total:    1024

HugePages_Free:        0

HugePages_Rsvd:        0

HugePages_Surp:        0

Hugepagesize:       2048 kB

#



*Primary Process:*


EAL: Detected lcore 0 as core 0 on socket 0

EAL: Detected lcore 1 as core 0 on socket 0

EAL: Support maximum 128 logical core(s) by configuration.

EAL: Detected 2 lcore(s)

EAL: Setting up physically contiguous memory...

EAL: cannot open /proc/self/numa_maps, consider that all memory is in
socket_id 0

EAL: Ask a virtual area of 0x22800000 bytes

EAL: Virtual area found at 0x7fffd0a00000 (size = 0x22800000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fffd0600000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fffd0200000 (size = 0x200000)

EAL: Ask a virtual area of 0x57600000 bytes

EAL: Virtual area found at 0x7fff78a00000 (size = 0x57600000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fff78400000 (size = 0x400000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fff77e00000 (size = 0x400000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fff77800000 (size = 0x400000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff77400000 (size = 0x200000)

EAL: Ask a virtual area of 0x2200000 bytes

EAL: Virtual area found at 0x7fff75000000 (size = 0x2200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff74c00000 (size = 0x200000)

EAL: Ask a virtual area of 0x800000 bytes

EAL: Virtual area found at 0x7fff74200000 (size = 0x800000)

EAL: Ask a virtual area of 0x600000 bytes

EAL: Virtual area found at 0x7fff73a00000 (size = 0x600000)

EAL: Ask a virtual area of 0x800000 bytes

EAL: Virtual area found at 0x7fff73000000 (size = 0x800000)

EAL: Ask a virtual area of 0xa00000 bytes

EAL: Virtual area found at 0x7fff72400000 (size = 0xa00000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fff71e00000 (size = 0x400000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff71a00000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff71600000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff71200000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fff70e00000 (size = 0x200000)

EAL: Requesting 1024 pages of size 2MB from socket 0

EAL: TSC frequency is ~1799997 KHz

EAL: Master lcore 1 is ready (tid=f7fe78a0;cpuset=[1])

EAL: PCI device 0000:03:00.0 on NUMA socket 0

EAL:   probe driver: 15ad:7b0 rte_vmxnet3_pmd

EAL:   Not managed by a supported kernel driver, skipped

EAL: PCI device 0000:1b:00.0 on NUMA socket 0

EAL:   probe driver: 8086:1572 rte_i40e_pmd

EAL:   PCI memory mapped at 0x7fff6f1f3000

EAL:   PCI memory mapped at 0x7ffff7fac000

#

On Fri, Jan 22, 2016 at 2:12 AM, Thomas Monjalon <thomas.monjalon at 6wind.com>
wrote:

> Hi,
>
> Thanks for asking.
> There are a couple of requests hidden in this message.
> The maintainer of i40e is Helin (CC'ed).
>
> 2016-01-21 14:54, Saurabh Mishra:
> > Hi,
> >
> > We have noticed that i40e if we do PCI-pass through of whole NIC to VM on
> > ESXi 6.0, the DPDK exits abruptly in rte_eal_init()?
>
> This looks to be a bug report :)
>
> > We are passing following parameters:
> >
> >     char *eal_argv[] = {"fakeelf",
> >
> >                         "-c2",
> >
> >                         "-n4",
> >
> >                         "--proc-type=primary",};
> >
> >
> > int ret = rte_eal_init(4, eal_argv);
> >
> > The code works with Intel '82599ES 10-Gigabit SFI/SFP+ ' adapter in
> > PCI-passthrough or SR-IOV mode however i40e it does not work.
>
> You probably have the feeling that i40e does not work as other PMDs,
> maybe wondering what are the special extended PCI configs.
>
> > [root at localhost:~] esxcfg-nics -l
> >
> > [.]
> >
> > vmnic6  0000:07:00.0 i40e        Up   10000Mbps Full   3c:fd:fe:04:11:c0
> > 1500   Intel Corporation Ethernet Controller X710 for 10GbE SFP+
> >
> > vmnic7  0000:07:00.1 i40e        Up   10000Mbps Full   3c:fd:fe:04:11:c2
> > 1500   Intel Corporation Ethernet Controller X710 for 10GbE SFP+
> >
> >
> > We have turned on following config in DPDK:
> >
> > CONFIG_RTE_PCI_CONFIG=y
> >
> > CONFIG_RTE_PCI_EXTENDED_TAG="on"
> > CONFIG_RTE_LIBRTE_I40E_16BYTE_RX_DESC=y
> >
> >
> > Is there any special handling in DPDK for i40e adapter in terms of
> config?
>
> So you had no help when reading the code comments neither in the doc.
> Indeed the only doc about i40e is the SR-IOV VF page:
>         http://dpdk.org/doc/guides/nics/intel_vf.html
>
> Please Helin, check the issue and the lack of documentation.
> Thanks
>
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