[dpdk-dev] testpmd only receive 127 packets, then becomes all RX-errors

[William Tu]

Hi folks,

I'm using two servers connected back to back using 2 Intel 82599 10G NICs
to test the dpdk. At the sender side, I use dpdk Pktgen to generate UDP
packet.  I program the destination mac statically to make sure no ARP is
necessary.

My first experiments using Pktgen on both sender and receiver shows around
6M pkt/sec, with each packet having 128 byte. Then I replace the receiver
side with testpmd
" x86_64-default-linuxapp-gcc/app/testpmd -c ff -n 4 -- -i "
and the sender side remains the same setting using Pktgen.

As shown below, once my testpmd receives 127 packets, the rest of all
packets becomes RX-errors.  I try lower down the sender's rate to only 10%
but still the same.
  ######################## NIC statistics for port 0
########################
  RX-packets: 127        RX-errors: 145675959 RX-bytes: 16256
  TX-packets: 0          TX-errors: 0         TX-bytes: 0

############################################################################

Can anyone gives me some comments?
Thank you.

William (Cheng-Chun Tu)



My system does not have numa, below is a full log at rx side:
bitmask: ff
Launching app
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 1 on socket 0
EAL: Detected lcore 2 as core 2 on socket 0
EAL: Detected lcore 3 as core 3 on socket 0
EAL: Detected lcore 4 as core 0 on socket 0
EAL: Detected lcore 5 as core 1 on socket 0
EAL: Detected lcore 6 as core 2 on socket 0
EAL: Detected lcore 7 as core 3 on socket 0
EAL: Setting up hugepage memory...
EAL: Ask a virtual area of 0x2097152 bytes
EAL: Virtual area found at 0x7f577ea00000 (size = 0x200000)
EAL: Ask a virtual area of 0x2097152 bytes
EAL: Virtual area found at 0x7f577e600000 (size = 0x200000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f577e000000 (size = 0x400000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f577da00000 (size = 0x400000)
EAL: Ask a virtual area of 0x8388608 bytes
EAL: Virtual area found at 0x7f577d000000 (size = 0x800000)
EAL: Ask a virtual area of 0x8388608 bytes
EAL: Virtual area found at 0x7f577c600000 (size = 0x800000)
EAL: Ask a virtual area of 0x12582912 bytes
EAL: Virtual area found at 0x7f577b800000 (size = 0xc00000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f577b200000 (size = 0x400000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f577ac00000 (size = 0x400000)
EAL: Ask a virtual area of 0x12582912 bytes
EAL: Virtual area found at 0x7f5779e00000 (size = 0xc00000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5779800000 (size = 0x400000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5779200000 (size = 0x400000)
EAL: Ask a virtual area of 0x12582912 bytes
EAL: Virtual area found at 0x7f5778400000 (size = 0xc00000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5777e00000 (size = 0x400000)
EAL: Ask a virtual area of 0x12582912 bytes
EAL: Virtual area found at 0x7f5777000000 (size = 0xc00000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5776a00000 (size = 0x400000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5776400000 (size = 0x400000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f5775e00000 (size = 0x400000)
EAL: Ask a virtual area of 0x138412032 bytes
EAL: Virtual area found at 0x7f576d800000 (size = 0x8400000)
EAL: Ask a virtual area of 0x12582912 bytes
EAL: Virtual area found at 0x7f576ca00000 (size = 0xc00000)
EAL: Ask a virtual area of 0x4194304 bytes
EAL: Virtual area found at 0x7f576c400000 (size = 0x400000)
EAL: Requesting 128 pages of size 2MB from socket 0
EAL: TSC frequency is ~3400025 KHz
EAL: Master core 0 is ready (tid=7ecef820)
EAL: Core 3 is ready (tid=6abfc700)
EAL: Core 6 is ready (tid=63fff700)
EAL: Core 4 is ready (tid=6a3fb700)
EAL: Core 7 is ready (tid=693f9700)
EAL: Core 5 is ready (tid=69bfa700)
EAL: Core 1 is ready (tid=6bbfe700)
EAL: Core 2 is ready (tid=6b3fd700)
EAL: PCI device 0000:01:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10fb rte_ixgbe_pmd
EAL:   PCI memory mapped at 0x7f577ec3c000
EAL:   PCI memory mapped at 0x7f577ed02000
EAL: PCI device 0000:01:00.1 on NUMA socket -1
EAL:   probe driver: 8086:10fb rte_ixgbe_pmd
EAL:   PCI memory mapped at 0x7f577e8fe000
EAL:   PCI memory mapped at 0x7f577e8fa000
EAL: PCI device 0000:02:10.0 on NUMA socket -1
EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd
EAL:   0000:02:10.0 not managed by UIO driver, skipping
EAL: PCI device 0000:02:10.2 on NUMA socket -1
EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd
EAL:   0000:02:10.2 not managed by UIO driver, skipping
EAL: PCI device 0000:04:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   0000:04:00.0 not managed by UIO driver, skipping
EAL: PCI device 0000:05:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10d3 rte_em_pmd
EAL:   0000:05:00.0 not managed by UIO driver, skipping
Interactive-mode selected
Configuring Port 0 (socket -1)
Configuring Port 1 (socket -1)
Checking link statuses...
Port 0 Link Up - speed 10000 Mbps - full-duplex
Port 1 Link Down
Done
testpmd> show port stats all

  ######################## NIC statistics for port 0
########################
  RX-packets: 127        RX-errors: 764471    RX-bytes: 16256
  TX-packets: 0          TX-errors: 0         TX-bytes: 0

############################################################################