[dpdk-users] DPDK i40evf problem in receving packet

Saurabh Mishra saurabh.globe at gmail.com
Fri Feb 5 23:32:51 CET 2016


Hi,

I'm seeing two problems:

1)  when use our kernel '3.10.88-8.0.0.0.6', we only receive first packet
but not subsequent ones at all after that. However, when I use centos7.0,
then l2fwd is able to receive all the packets.

2) I've also seen that on centos7.0, symmetric_mp itself is not working.
dev start fails with 280 error.

i40evf is giving us lot of headache. The i40evf kernel driver works without
any problem. Host is a centos7 KVM. I've already upgraded firmware to
latest.

[root at localhost ~]# uname -a

Linux localhost.localdomain 3.10.0-327.4.5.el7.x86_64 #1 SMP Mon Jan 25
22:07:14 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[root at localhost ~]#

[root at localhost ~]# ./symmetric_mp fakeelf --file-prefix=virtaddr -c2
-m2048 -n1 --base-virtaddr=0x7fa000000000 --proc-type=primary -- -p 3
--num-procs=1 --proc-id=0

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: No free hugepages reported in hugepages-1048576kB

EAL: VFIO modules not all loaded, skip VFIO support...

EAL: Setting up physically contiguous memory...

EAL: Ask a virtual area of 0x2a800000 bytes

EAL: Virtual area found at 0x7fa000000000 (size = 0x2a800000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fa02a800000 (size = 0x200000)

EAL: Ask a virtual area of 0x54000000 bytes

EAL: Virtual area found at 0x7fa02aa00000 (size = 0x54000000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fa07ea00000 (size = 0x400000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fa07ee00000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fa07f000000 (size = 0x200000)

EAL: Ask a virtual area of 0x600000 bytes

EAL: Virtual area found at 0x7fa07f200000 (size = 0x600000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fa07f800000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7fa07fa00000 (size = 0x200000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7fa07fc00000 (size = 0x400000)

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

EAL: TSC frequency is ~2600000 KHz

EAL: WARNING: cpu flags constant_tsc=yes nonstop_tsc=no -> using unreliable
clock cycles !

EAL: Master lcore 1 is ready (tid=3e55900;cpuset=[1])

EAL: PCI device 0000:00:09.0 on NUMA socket -1

EAL:   probe driver: 8086:154c rte_i40evf_pmd

EAL:   PCI memory mapped at 0x7fa080000000

EAL:   PCI memory mapped at 0x7fa080010000

EAL: PCI device 0000:00:0a.0 on NUMA socket -1

EAL:   probe driver: 8086:154c rte_i40evf_pmd

EAL:   PCI memory mapped at 0x7fa080014000

EAL:   PCI memory mapped at 0x7fa080024000

# Initialising port 0... Queue :1

PMD: i40e_dev_rx_queue_setup(): Rx Burst Bulk Alloc Preconditions are
satisfied. Rx Burst Bulk Alloc function will be used on port=0, queue=0.

PMD: i40e_set_tx_function_flag(): Vector tx can be enabled on this txq.

PMD: i40e_set_rx_function(): Port[0] doesn't meet Vector Rx preconditions

PMD: i40e_set_rx_function(): Rx Burst Bulk Alloc Preconditions are
satisfied. Rx Burst Bulk Alloc function will be used on port=0.

PMD: i40e_set_tx_function(): Simple tx finally be used.

smp_port_init() dev start error 280

EAL: Error - exiting with code: 1

  Cause: Error initialising ports

[root at localhost ~]#


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