[dpdk-users] problem running ip pipeline application

[Talukdar, Biju]

Hi Jasvinder,
I have seen one of your archive mail, where you described how one can extract fields by modifying the configuration file. here is a small excerpt:
 
PIPELINE1]
type = PASS-THROUGH
core = 1
pktq_in = RXQ0.0 RXQ1.0 RXQ2.0 RXQ3.0
pktq_out = TXQ0.0 TXQ1.0 TXQ2.0 TXQ3.0
dma_size = 16
dma_dst_offset = 64
dma_src_offset = 150
dma_src_mask = 00FF0000FFFFFFFFFFFFFFFFFFFFFFFF
dma_hash_offset = 80

I am not able to understand what these field means. I want to extract src ip and destination ip. How would my configuration file would look like.
 Again where the fields will be extracted. I need them as a input to my function where I will use the src/dst ips  to calculate a hash value and update my array.
Also how do I print values of my variable. Is there any log file where I can print values. How do I debug my program, feeling helpless.
Regarding the CLI. I also could not get any command for CLI. I just found one "p 1 ping". Could you please give some information.

please help !!

Regards
Biju
________________________________________
From: users <users-bounces at dpdk.org> on behalf of Talukdar, Biju <Biju_Talukdar at student.uml.edu>
Sent: Wednesday, April 6, 2016 5:21 PM
To: Singh, Jasvinder; users
Subject: Re: [dpdk-users] problem running ip pipeline application

Hi Jasvinder,
Thank you very much . That worked fine. I am trying to change the source code of pass-through pipeline.
I believe the statement
*port_out = port_in / p->n_ports_in ;
in the function "in pipeline_passthrough_track(...)" is passing through the packets from input port to the output port.My goal is to extract each packet's source ip and destination ip to apply my hash function and save the hash value into a array. I did the following  :

l2fwd_pktmbuf_pool = rte_mempool_create("mbuf_pool", NB_MBUF, MBUF_SIZE, 32,
               sizeof(struct rte_pktmbuf_pool_private),
               rte_pktmbuf_pool_init, NULL,
               rte_pktmbuf_init, NULL,
               rte_socket_id(), 0);

if (l2fwd_pktmbuf_pool == NULL)
    rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");

    total_nb_rx = rte_eth_rx_burst((uint8_t) port_in, 0, pkts_burst,
        MAX_PKT_BURST);

before the statement
 *port_out = port_in / p->n_ports_in ;

I know that this is wrong. The program is not even passing through there. I put a printf and I could not see the print.

Now my question is could you please give some pointer where I should copy the packets( or just extract the src ip/dst ip ) before forwarding. I am really getting lost looking at the manual. Please help !!


Thanks a ton
________________________________________
From: Singh, Jasvinder <jasvinder.singh at intel.com>
Sent: Wednesday, April 6, 2016 5:22 AM
To: Talukdar, Biju; users
Subject: RE: problem running ip pipeline application

Hi,

> -----Original Message-----
> From: users [mailto:users-bounces at dpdk.org] On Behalf Of Talukdar, Biju
> Sent: Wednesday, April 6, 2016 1:43 AM
> To: users <users at dpdk.org>
> Cc: Talukdar, Biju <Biju_Talukdar at student.uml.edu>
> Subject: [dpdk-users] problem running ip pipeline application
>
> Hi ,
>
>
> I am getting the following error when trying to run dpdk ip pipeline
> example.Could someone please tell me what went wrong.
>
>
> system configuration:
>
> dpdk 2.2.0
>
> ubuntu 14.04
>
>
> network driver:
>
> /dpdk-2.2.0$ ./tools/dpdk_nic_bind.py --status
>
> Network devices using DPDK-compatible driver
> ============================================
> 0000:04:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio
> unused=
>
> Network devices using kernel driver
> ===================================
> 0000:04:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection' if=eth3
> drv=ixgbe unused=igb_uio
> 0000:05:00.0 'I350 Gigabit Network Connection' if=eth0 drv=igb
> unused=igb_uio *Active*
> 0000:05:00.1 'I350 Gigabit Network Connection' if=eth2 drv=igb
> unused=igb_uio
>
> Other network devices
> =====================
> 0000:03:00.0 'Device 15ad' unused=igb_uio
> 0000:03:00.1 'Device 15ad' unused=igb_uio uml at uml:~/dpdk-2.2.0$
> ./tools/dpdk_nic_bind.py --status
>
> Network devices using DPDK-compatible driver
> ============================================
> 0000:04:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio
> unused=
>
> Network devices using kernel driver
> ===================================
> 0000:04:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection' if=eth3
> drv=ixgbe unused=igb_uio
> 0000:05:00.0 'I350 Gigabit Network Connection' if=eth0 drv=igb
> unused=igb_uio *Active*
> 0000:05:00.1 'I350 Gigabit Network Connection' if=eth2 drv=igb
> unused=igb_uio
>
> Other network devices
> =====================
> 0000:03:00.0 'Device 15ad' unused=igb_uio
> 0000:03:00.1 'Device 15ad' unused=igb_uio uml at uml:~/dpdk-2.2.0$
>
>
> Here is the dump -------->
>
>
>
> ~/dpdk-2.2.0/examples/ip_pipeline/ip_pipeline/x86_64-native-linuxapp-
> gcc/app$ sudo -E ./ip_pipeline -f /home/uml/dpdk-
> 2.2.0/examples/ip_pipeline/config/l2fwd.cfg -p 0x01 [sudo] password for
> uml:
> [APP] Initializing CPU core map ...
> [APP] CPU core mask = 0x0000000000000003 [APP] Initializing EAL ...
> 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 4 on socket 0
> EAL: Detected lcore 5 as core 5 on socket 0
> EAL: Detected lcore 6 as core 6 on socket 0
> EAL: Detected lcore 7 as core 7 on socket 0
> EAL: Detected lcore 8 as core 0 on socket 0
> EAL: Detected lcore 9 as core 1 on socket 0
> EAL: Detected lcore 10 as core 2 on socket 0
> EAL: Detected lcore 11 as core 3 on socket 0
> EAL: Detected lcore 12 as core 4 on socket 0
> EAL: Detected lcore 13 as core 5 on socket 0
> EAL: Detected lcore 14 as core 6 on socket 0
> EAL: Detected lcore 15 as core 7 on socket 0
> EAL: Support maximum 128 logical core(s) by configuration.
> EAL: Detected 16 lcore(s)
> EAL: VFIO modules not all loaded, skip VFIO support...
> EAL: Setting up physically contiguous memory...
> EAL: Ask a virtual area of 0x40000000 bytes
> EAL: Virtual area found at 0x7f24c0000000 (size = 0x40000000)
> EAL: Requesting 1 pages of size 1024MB from socket 0
> EAL: TSC frequency is ~1999998 KHz
> EAL: Master lcore 0 is ready (tid=bc483940;cpuset=[0])
> EAL: lcore 1 is ready (tid=bad86700;cpuset=[1])
> EAL: PCI device 0000:03:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:15ad rte_ixgbe_pmd
> EAL:   Not managed by a supported kernel driver, skipped
> EAL: PCI device 0000:03:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:15ad rte_ixgbe_pmd
> EAL:   Not managed by a supported kernel driver, skipped
> EAL: PCI device 0000:04:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:10fb rte_ixgbe_pmd
> EAL:   PCI memory mapped at 0x7f2500000000
> EAL:   PCI memory mapped at 0x7f2500080000
> PMD: eth_ixgbe_dev_init(): MAC: 2, PHY: 18, SFP+: 5
> PMD: eth_ixgbe_dev_init(): port 0 vendorID=0x8086 deviceID=0x10fb
> EAL: PCI device 0000:04:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:10fb rte_ixgbe_pmd
> EAL:   Not managed by a supported kernel driver, skipped
> EAL: PCI device 0000:05:00.0 on NUMA socket 0
> EAL:   probe driver: 8086:1521 rte_igb_pmd
> EAL:   Not managed by a supported kernel driver, skipped
> EAL: PCI device 0000:05:00.1 on NUMA socket 0
> EAL:   probe driver: 8086:1521 rte_igb_pmd
> EAL:   Not managed by a supported kernel driver, skipped
> [APP] Initializing MEMPOOL0 ...
> [APP] Initializing LINK0 (0) (1 RXQ, 1 TXQ) ...
> PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7f24fb128340
> sw_sc_ring=0x7f24fb127e00 hw_ring=0x7f24fb128880
> dma_addr=0xffb128880
> PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f24fb115c40
> hw_ring=0x7f24fb117c80 dma_addr=0xffb117c80
> PMD: ixgbe_set_tx_function(): Using simple tx code path
> PMD: ixgbe_set_tx_function(): Vector tx enabled.
> PMD: ixgbe_set_rx_function(): Vector rx enabled, please make sure RX burst
> size no less than 4 (port=0).
> [APP] LINK0 (0) (10 Gbps) UP
> [APP] Initializing MSGQ-REQ-PIPELINE0 ...
> [APP] Initializing MSGQ-RSP-PIPELINE0 ...
> [APP] Initializing MSGQ-REQ-CORE-s0c0 ...
> [APP] Initializing MSGQ-RSP-CORE-s0c0 ...
> [APP] Initializing MSGQ-REQ-PIPELINE1 ...
> [APP] Initializing MSGQ-RSP-PIPELINE1 ...
> [APP] Initializing MSGQ-REQ-CORE-s0c1 ...
> [APP] Initializing MSGQ-RSP-CORE-s0c1 ...
> [APP] Initializing PIPELINE0 ...
> pipeline> [APP] Initializing PIPELINE1 ...
> Cannot find LINK1 for RXQ1.0


Seems like you are having less ports than specified in l2fwd.cfg. In order to run ip_pipeline with l2fwd.cfg configuration file, 4 ports are required.  So , you can either change configuration file and remove 3 extra ports (RXQ1.0, RXQ2.0, RXQ3.0 and TXQ1.0, TXQ2.0, TXQ3.0)  or bind 3 more ports to dpdk and use the default l2fwd.cfg straightaway.

Jasvinder