l3fwd doesn't seem to work

[Patrick Mahan <mahan-5dHXHCkEAVbYtjvyW6yDsg@public.gmane.org>]

All,

I am trying to run l3fwd example.

The system is a single chip E5-2690 (8 core) with 64 GB of DDR3 memory and
a 82599 2 port NIC connected to an Ixia traffic generator.

I have successfully run test, testpmd and l2fwd.  Both testpmd and l2fwd seem to
work as documented.

However, l3fwd doesn't seem to be working.

I made two changes in the code:

1. I changed the hard-coded config to the following

   {0, 0, 0},
   {0, 1, 1},
   {0, 2, 2},
   {0, 3, 3},
   {1, 0, 4},
   {1, 1, 5},
   {1, 2, 6},
   {1, 3, 7}

2. I change the hardcoded LPM routes to the following:

  {IPv4(192,168,10,0), 24, 0},
  {IPv4(192,168,11,0), 24, 0},
  {IPv4(192,168,12,0), 24, 0},
  {IPv4(192,168,13,0), 24, 0},
  {IPv4(192,168,14,0), 24, 0},
  {IPv4(192,168,15,0), 24, 0},
  {IPv4(192,168,16,0), 24, 0},
  {IPv4(192,168,17,0), 24, 0},
  {IPv4(192,168,18,0), 24, 0},
  {IPv4(192,168,19,0), 24, 0},
  {IPv4(192,168,20,0), 24, 1},
  {IPv4(192,168,21,0), 24, 1},
  {IPv4(192,168,22,0), 24, 1},
  {IPv4(192,168,23,0), 24, 1},
  {IPv4(192,168,24,0), 24, 1},
  {IPv4(192,168,25,0), 24, 1},
  {IPv4(192,168,26,0), 24, 1},
  {IPv4(192,168,27,0), 24, 1},
  {IPv4(192,168,28,0), 24, 1},
  {IPv4(192,168,29,0), 24, 1},

The Ixia is setup to generate packets varying from 192.168.20.1-192.168.29.256 to
port 0 and 192.168.10.1-192.168.19.256 to port 1.

I started the l3fwd with the following command:

sudo ./build/l3fwd -b 0000:06:00.0 -b 0000:06:00.1 -c ff -n 3 -- -p 3

Ports 06:00.0 and 06:00.1 are the Intel i350 ports on the motherboard.

If I understand the code, this should setup 4 lcores listening for packets
on port 0 using 4 queues, and 4 lcores listening for packets on port 1
using 4 queues.

The l3pwd example starts up (see the output below) but just sits there and
no traffic is routed.  I even put in a timeout count to print the interface
stats (using rte_eth_stats_get()) to see if there was some issue at play.

The reads always return 0 (polling) and it is as if no packets are seen on
the interface.  When I run testpmd or l2pmd with the same packet stream, I
see packets going through.

Any ideas what is up?  Did I mis-configure something?

Thanks,

Patrick

Here is the output when I run l3pwd:

EAL: coremask set to ff
EAL: Using native RDTSC
EAL: Detected lcore 0 on socket 0
EAL: Detected lcore 1 on socket 0
EAL: Detected lcore 2 on socket 0
EAL: Detected lcore 3 on socket 0
EAL: Detected lcore 4 on socket 0
EAL: Detected lcore 5 on socket 0
EAL: Detected lcore 6 on socket 0
EAL: Detected lcore 7 on socket 0
EAL: Detected lcore 8 on socket 0
EAL: Detected lcore 9 on socket 0
EAL: Detected lcore 10 on socket 0
EAL: Detected lcore 11 on socket 0
EAL: Detected lcore 12 on socket 0
EAL: Detected lcore 13 on socket 0
EAL: Detected lcore 14 on socket 0
EAL: Detected lcore 15 on socket 0
EAL: Requesting 4 pages of size 1073741824
EAL: Ask a virtual area of 0x40000000 bytes
EAL: Virtual area found at 0x7f43c0000000 (size = 0x40000000)
EAL: Ask a virtual area of 0xc0000000 bytes
EAL: Virtual area found at 0x7f42c0000000 (size = 0xc0000000)
EAL: Master core 0 is ready (tid=b19a800)
EAL: Core 1 is ready (tid=9d97700)
EAL: Core 2 is ready (tid=9396700)
EAL: Core 3 is ready (tid=3fff700)
EAL: Core 4 is ready (tid=bffff700)
EAL: Core 5 is ready (tid=35fe700)
EAL: Core 6 is ready (tid=2bfd700)
EAL: Core 7 is ready (tid=21fc700)
Allocated mbuf pool on socket 0
LPM: Allocated LPM with 1024 rules, tbl24: 16777216 entries, tbl8: 65536 groups x
256 entries
LPM: Adding route 0xc0a80a00 / 24 (0)
LPM: Adding route 0xc0a80b00 / 24 (0)
LPM: Adding route 0xc0a80c00 / 24 (0)
LPM: Adding route 0xc0a80d00 / 24 (0)
LPM: Adding route 0xc0a80e00 / 24 (0)
LPM: Adding route 0xc0a80f00 / 24 (0)
LPM: Adding route 0xc0a81000 / 24 (0)
LPM: Adding route 0xc0a81100 / 24 (0)
LPM: Adding route 0xc0a81200 / 24 (0)
LPM: Adding route 0xc0a81300 / 24 (0)
LPM: Adding route 0xc0a81400 / 24 (1)
LPM: Adding route 0xc0a81500 / 24 (1)
LPM: Adding route 0xc0a81600 / 24 (1)
LPM: Adding route 0xc0a81700 / 24 (1)
LPM: Adding route 0xc0a81800 / 24 (1)
LPM: Adding route 0xc0a81900 / 24 (1)
LPM: Adding route 0xc0a81a00 / 24 (1)
LPM: Adding route 0xc0a81b00 / 24 (1)
LPM: Adding route 0xc0a81c00 / 24 (1)
LPM: Adding route 0xc0a81d00 / 24 (1)
EAL: probe driver: 8086:10fb rte_ixgbe_pmd
EAL: unbind kernel driver /sys/bus/pci/devices/0000:03:00.0/driver/unbind
EAL: bind PCI device 0000:03:00.0 to igb_uio driver
EAL: Device bound
EAL: map PCI resource for device 0000:03:00.0
EAL: Mapping resources for '/dev/uio0' starting at 0x00000000 for 524288 bytes
EAL: PCI memory mapped at 0x7f4408916000
EAL: probe driver: 8086:10fb rte_ixgbe_pmd
EAL: unbind kernel driver /sys/bus/pci/devices/0000:03:00.1/driver/unbind
EAL: bind PCI device 0000:03:00.1 to igb_uio driver
EAL: Device bound
EAL: map PCI resource for device 0000:03:00.1
EAL: Mapping resources for '/dev/uio1' starting at 0x00000000 for 524288 bytes
EAL: PCI memory mapped at 0x7f4408896000
EAL: probe driver: 8086:1521 rte_igb_pmd
EAL: probe driver: 8086:1521 rte_igb_pmd
Initializing port 0 ... Creating queues: nb_rxq=4 nb_txq=8...
Address:00:1B:21:6B:8D:D4, txq=0,0,0 txq=1,1,0 txq=2,2,0 txq=3,3,0 txq=4,4,0
txq=5,5,0 txq=6,6,0 txq=7,7,0
Initializing port 1 ... Creating queues: nb_rxq=4 nb_txq=8...
Address:00:1B:21:6B:8D:D5, txq=0,0,0 txq=1,1,0 txq=2,2,0 txq=3,3,0 txq=4,4,0
txq=5,5,0 txq=6,6,0 txq=7,7,0

Initializing rx queues on lcore 0 ... rxq=0,0,0
Initializing rx queues on lcore 1 ... rxq=0,1,0
Initializing rx queues on lcore 2 ... rxq=0,2,0
Initializing rx queues on lcore 3 ... rxq=0,3,0
Initializing rx queues on lcore 4 ... rxq=1,0,0
Initializing rx queues on lcore 5 ... rxq=1,1,0
Initializing rx queues on lcore 6 ... rxq=1,2,0
Initializing rx queues on lcore 7 ... rxq=1,3,0
done: Port 0  Link Up - speed 10000 Mbps - full-duplex
done: Port 1  Link Up - speed 10000 Mbps - full-duplex
L3FWD: entering main loop on lcore 1
L3FWD:  -- lcoreid=1 portid=0 rxqueueid=1
L3FWD: entering main loop on lcore 3
L3FWD:  -- lcoreid=3 portid=0 rxqueueid=3
L3FWD: entering main loop on lcore 2
L3FWD:  -- lcoreid=2 portid=0 rxqueueid=2
L3FWD: entering main loop on lcore 4
L3FWD:  -- lcoreid=4 portid=1 rxqueueid=0
L3FWD: entering main loop on lcore 5
L3FWD:  -- lcoreid=5 portid=1 rxqueueid=1
L3FWD: entering main loop on lcore 0
L3FWD:  -- lcoreid=0 portid=0 rxqueueid=0
L3FWD: entering main loop on lcore 7
L3FWD:  -- lcoreid=7 portid=1 rxqueueid=3
L3FWD: entering main loop on lcore 6
L3FWD:  -- lcoreid=6 portid=1 rxqueueid=2