Let me share one more information about this issue.
I tried to run dpdk-2.2.0/examples/ethtool, which showed the same problem.
(i.e. I guess other examples will also fail.)


[root@centos7 app]# ./ethtool
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 0 on socket 1
EAL: Detected lcore 2 as core 1 on socket 0
EAL: Detected lcore 3 as core 1 on socket 1
EAL: Detected lcore 4 as core 2 on socket 0
EAL: Detected lcore 5 as core 2 on socket 1
EAL: Detected lcore 6 as core 3 on socket 0
EAL: Detected lcore 7 as core 3 on socket 1
EAL: Detected lcore 8 as core 0 on socket 0
EAL: Detected lcore 9 as core 0 on socket 1
EAL: Detected lcore 10 as core 1 on socket 0
EAL: Detected lcore 11 as core 1 on socket 1
EAL: Detected lcore 12 as core 2 on socket 0
EAL: Detected lcore 13 as core 2 on socket 1
EAL: Detected lcore 14 as core 3 on socket 0
EAL: Detected lcore 15 as core 3 on socket 1
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 0x1400000 bytes
EAL: Virtual area found at 0x7f79fa800000 (size = 0x1400000)
EAL: Ask a virtual area of 0x7ec00000 bytes
EAL: Virtual area found at 0x7f797ba00000 (size = 0x7ec00000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7f797b600000 (size = 0x200000)
EAL: Ask a virtual area of 0x7fc00000 bytes
EAL: Virtual area found at 0x7f78fb800000 (size = 0x7fc00000)
EAL: Ask a virtual area of 0x200000 bytes
EAL: Virtual area found at 0x7f78fb400000 (size = 0x200000)
EAL: Ask a virtual area of 0x100000000 bytes
EAL: Virtual area found at 0x7f77fb200000 (size = 0x100000000)
EAL: Requesting 2048 pages of size 2MB from socket 0
EAL: Requesting 2048 pages of size 2MB from socket 1
EAL: TSC frequency is ~2260984 KHz
EAL: Master lcore 0 is ready (tid=fdc578c0;cpuset=[0])
EAL: lcore 6 is ready (tid=f81cb700;cpuset=[6])
EAL: lcore 4 is ready (tid=f91cd700;cpuset=[4])
EAL: lcore 12 is ready (tid=f51c5700;cpuset=[12])
EAL: lcore 9 is ready (tid=f69c8700;cpuset=[9])
EAL: lcore 8 is ready (tid=f71c9700;cpuset=[8])
EAL: lcore 14 is ready (tid=f41c3700;cpuset=[14])
EAL: lcore 3 is ready (tid=f99ce700;cpuset=[3])
EAL: lcore 13 is ready (tid=f49c4700;cpuset=[13])
EAL: lcore 7 is ready (tid=f79ca700;cpuset=[7])
EAL: lcore 10 is ready (tid=f61c7700;cpuset=[10])
EAL: lcore 11 is ready (tid=f59c6700;cpuset=[11])
EAL: lcore 15 is ready (tid=f39c2700;cpuset=[15])
EAL: lcore 5 is ready (tid=f89cc700;cpuset=[5])
EAL: lcore 2 is ready (tid=fa1cf700;cpuset=[2])
EAL: lcore 1 is ready (tid=fc562700;cpuset=[1])
EAL: PCI device 0000:06:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10e8 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:06:00.1 on NUMA socket -1
EAL:   probe driver: 8086:10e8 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:07:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10e8 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:07:00.1 on NUMA socket -1
EAL:   probe driver: 8086:10e8 rte_igb_pmd
EAL:   Not managed by a supported kernel driver, skipped
EAL: PCI device 0000:09:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10c7 rte_ixgbe_pmd
EAL:   PCI memory mapped at 0x7f79fbc00000
EAL:   PCI memory mapped at 0x7f79fbc20000
EAL:   PCI memory mapped at 0x7f79fbc60000
PMD: eth_ixgbe_dev_init(): MAC: 1, PHY: 8
PMD: eth_ixgbe_dev_init(): port 0 vendorID=0x8086 deviceID=0x10c7
EAL: PCI device 0000:0a:00.0 on NUMA socket -1
EAL:   probe driver: 8086:10c7 rte_ixgbe_pmd
EAL:   PCI memory mapped at 0x7f79fbc64000
EAL:   PCI memory mapped at 0x7f79fbc84000
EAL:   PCI memory mapped at 0x7f79fbcc4000
PMD: eth_ixgbe_dev_init(): MAC: 1, PHY: 8
PMD: eth_ixgbe_dev_init(): port 1 vendorID=0x8086 deviceID=0x10c7
Number of NICs: 2
Init port 0..
PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7f78f99d7140
sw_sc_ring=0x7f78f99d6c00 hw_ring=0x7f78f99d7680 dma_addr=0x4207d7680
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f78f99c5a40
hw_ring=0x7f78f99c6a80 dma_addr=0x4207c6a80
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).
PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 0
Init port 1..
PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7f78f846ad40
sw_sc_ring=0x7f78f846a800 hw_ring=0x7f78f846b280 dma_addr=0x41f26b280
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f78f8459640
hw_ring=0x7f78f845a680 dma_addr=0x41f25a680
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=1).
PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 0
EthApp> pause
 [UINT16]: pause <port_id>
     Print port pause state
 [UINT16]: pause <port_id> <all|tx|rx|none>
     Pause/unpause port
EthApp> pause 0
Port 0: Rx Paused
EthApp> pause 0 none
PMD: ixgbe_flow_ctrl_set(): Rx packet buffer size = 0x80000
Port 0: Tx & Rx not paused
EthApp> pause 0
Port 0: Rx Paused
EthApp> quit
[root@centos7 app]# pwd



On Thu, Jan 28, 2016 at 9:57 AM, Moon-Sang Lee [off-list ref] wrote:

Helin, I implemented my own sample application that is a kind of carrier
grade NAT server.
It works fine on 1G NIC (i.e. Intel Corporation 82576 Gigabit Network
Connection (rev 01))
But, it does not receive packets on 10G NIC (i.e. Intel Corporation
82598EB 10-Gigabit AF Network Connection (rev 01)) as described in the
previous email.
According to my log messages, it seems that control register for RX DMA is
not enabled.

Here is some information about my environment.

1. HW & OS
[mslee@centos7 ~]$ uname -a
Linux centos7 3.10.0-229.el7.x86_64 #1 SMP Fri Mar 6 11:36:42 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
[mslee@centos7 ~]$ more /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
stepping : 5
microcode : 0x19
cpu MHz : 2262.000
cache size : 8192 KB
physical id : 1
siblings : 8
core id : 0
cpu cores : 4
apicid : 16
initial apicid : 16
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
rdtscp lm c
onstant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc
aperfmperf
 pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1
sse4_2 po
pcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips : 4521.93
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
...



2. port ocnfigure parameter for rte_eth_dev_configure():
ret = rte_eth_dev_configure(port, NB_RXQ, NB_TXQ, &port_conf);
where NB_RXQ=1, NB_TXQ=2, and
struct rte_eth_conf port_conf = {
    .rxmode = {
        //.mq_mode = ETH_MQ_RX_RSS,
        .mq_mode = ETH_MQ_RX_NONE,  // for 10G NIC
        .max_rx_pkt_len = ETHER_MAX_LEN,
        .split_hdr_size = 0,
        .header_split = 0,      // Header Split disabled
        .hw_ip_checksum = 0,    // IP checksum offload enabled
        .hw_vlan_filter = 0,    // VLAN filtering disabled
        .jumbo_frame = 0,       // Jumbo Frame Support disabled
        .hw_strip_crc = 0,      // CRC stripped by hardware
    },
    .rx_adv_conf = {
        .rss_conf = {
            .rss_key = NULL,
            .rss_hf = ETH_RSS_IP,
        },
    },
    .txmode = {
        .mq_mode = ETH_MQ_TX_NONE,
    },
};



3. rx queue setup parameter
ret = rte_eth_rx_queue_setup(port, RXQ_ID, NB_RXD, socket_id,  NULL,
pktmbuf_pool[socket_id])
where RXQ_ID = 0, NB_RXD = 128



4. config parameters in config/common_linuxapp
#
# Compile burst-oriented IXGBE PMD driver
#
CONFIG_RTE_LIBRTE_IXGBE_PMD=y
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_INIT=n
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX=n
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX=n
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX_FREE=n
CONFIG_RTE_LIBRTE_IXGBE_DEBUG_DRIVER=n
CONFIG_RTE_LIBRTE_IXGBE_PF_DISABLE_STRIP_CRC=n
CONFIG_RTE_IXGBE_INC_VECTOR=y
CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=y



5. where log message is printed

dpdk-2.2.0/drivers/net/ixgbe/ixgbe_rxtx.c:

        /* Allocate buffers for descriptor rings */
        if (ixgbe_alloc_rx_queue_mbufs(rxq) != 0) {
            PMD_INIT_LOG(ERR, "Could not alloc mbuf for queue:%d",
                     rx_queue_id);
            return -1;
        }
        rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
        rxdctl |= IXGBE_RXDCTL_ENABLE;
        IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl);

        /* Wait until RX Enable ready */
        poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
        do {
            rte_delay_ms(1);
            rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
        } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
        if (!poll_ms)
            PMD_INIT_LOG(ERR, "*Could not enable Rx Queue %d*",
 rx_queue_id);


I'm going to update firmware of my NIC, but I'm not sure it helps.
I appreciate any comment.



On Wed, Jan 27, 2016 at 4:23 PM, Zhang, Helin [off-list ref]
wrote:

quoted

Moon-Sang

Were you using pktgen or else application?
Could you help to share with me the detailed steps of your reproducing
that issue?
We will find time on that soon later. Thanks!

Regards,
Helin

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Laurent GUERBY
Sent: Wednesday, January 27, 2016 3:16 PM
To: Moon-Sang Lee <redacted>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Errors Rx count increasing while pktgen doing
nothing on Intel 82598EB 10G

On Wed, 2016-01-27 at 15:50 +0900, Moon-Sang Lee wrote:

quoted

Laurent, have you resolved this problem?
I'm using the same NIC as yours (i.e. Intel 82598EB 10G NIC) and faced
the same problem as you.
Here is parts of my log and it says that PMD cannot enable RX queue
for my NIC.
I'm using DPDK 2.2.0 and used 'null' for the 4th parameter in calling
rte_eth_rx_queue_setup().
(i.e. 'null' parameter provides the default rx_conf value.)

Hi,

I had to reuse my DPDK machines for another task, I will go back to it
after FOSDEM.

The error you get is the same as mine.

Sincerely,

Laurent

quoted

Thanks.





APP: initialising port 0 ...
PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7f5f27258040
sw_sc_ring=0x7f5f27257b00 hw_ring=0x7f5f27258580 dma_addr=0x41f458580
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f5f27245940
hw_ring=0x7f5f27247980 dma_addr=0x41f447980
PMD: ixgbe_set_tx_function(): Using simple tx code path
PMD: ixgbe_set_tx_function(): Vector tx enabled.
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f5f272337c0
hw_ring=0x7f5f27235800 dma_addr=0x41f435800
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).
PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 0
APP: port 0 has started
APP: port 0 has entered in promiscuous mode
APP: port 0 initialization is done.
KNI: pci: 09:00:00 8086:10c7
APP: kni allocation is done for port 0.
APP: initialising port 1 ...
PMD: ixgbe_dev_rx_queue_setup(): sw_ring=0x7f5f27222dc0
sw_sc_ring=0x7f5f27222880 hw_ring=0x7f5f27223300 dma_addr=0x41f423300
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f5f272106c0
hw_ring=0x7f5f27212700 dma_addr=0x41f412700
PMD: ixgbe_set_tx_function(): Using simple tx code path
PMD: ixgbe_set_tx_function(): Vector tx enabled.
PMD: ixgbe_dev_tx_queue_setup(): sw_ring=0x7f5f271fe540
hw_ring=0x7f5f27200580 dma_addr=0x41f400580
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=1).
PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 0
APP: port 1 has started
APP: port 1 has entered in promiscuous mode
APP: port 1 initialization is done.
KNI: pci: 0a:00:00 8086:10c7
APP: kni allocation is done for port 1.


checking link status
.done
Port 0 Link Up - speed 10000 Mbps - full-duplex Port 1 Link Up - speed
10000 Mbps - full-duplex



On Mon, Dec 28, 2015 at 5:28 AM, Wiles, Keith [off-list ref]
wrote:
        On 12/27/15, 2:09 PM, "Laurent GUERBY" [off-list ref]
        wrote:

        >On Sun, 2015-12-27 at 19:43 +0000, Wiles, Keith wrote:
        >> On 12/27/15, 12:31 PM, "dev on behalf of Laurent GUERBY"
        <dev-bounces@dpdk.org on behalf of laurent@guerby.net> wrote:
        >>
        >> >Hi,
        >> >
        >> >I reported today an issue when using Pktgen-DPDK:
        >> >https://github.com/pktgen/Pktgen-DPDK/issues/52
        >> >
        >> >But I think it's more in DPDK than pktgen
        >> >
        >> >two identical machines with SFP+ DA cable between them
        >> >DPDK 2.2.0 from tarball
        >> >Pktgen-DPDK from git
        >> >two identical machines:
        >> >core i7 2600 (sandy bridge 4C/8T), HT disabled in the BIOS
        >> >ASUS P8H67-M PRO BIOS 3904 (latest available)
        >> >Ethernet controller: Intel Corporation 82598EB 10-Gigabit
        AF Dual Port
        >> >Network Connection (rev 01)
        >> >01:00.0 0200: 8086:10f1 (rev 01)
        >> >    Subsystem: 8086:a21f
        >> >boot kernel 3.16 unbutu 14.04 with isolcpus=2,3,4
        >> >
        >> >When launching pktgen even with no TX asked the Errors RX
        counters keeps
        >> >going up by about 7.4 millions per second:
        >> >
        >> >Errors Rx/Tx : 7471857054/0
        >> >
        >> >In the log I get "Could not enable Rx Queue", might be the
        >> >source of the issue?
        >> >
        >> >PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue
        0
        >> >PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue
        1
        >> >
        >> >When sending traffic  single UDP src/dst/IP/MAC the setup
        >> >reaches 14204188 pps 64 bytes, the error counter is also
        >> >increasing.
        >> >
        >> >Any idea what to look for?
        >>
        >> One more suggestion is to run test_pmd on one machine and
        something
        >> like iperf on the other to verify the DPDK is working
        correct, which I
        >> assume will be true. Not sure the RX errors are reported in
        the
        >> test_pmd or you could use the l3fwd application too.
        >
        >Ok, I will check the test_pmd documentation and try to do
        this test: I'm
        >just starting on DPDK :).
        >
        >> Please also send me the 'lspci | grep Ethernet’ output.
        >
        >I included one line in my original email above (plus extract
        of lspci
        >-vn), here is the full output of the command:
        >
        >01:00.0 Ethernet controller: Intel Corporation 82598EB
        10-Gigabit AF
        >Dual Port Network Connection (rev 01)
        >01:00.1 Ethernet controller: Intel Corporation 82598EB
        10-Gigabit AF
        >Dual Port Network Connection (rev 01)
        >05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
        >RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
        (rev 06)
        >
        >(The realtek is used only for internet connectivity).
        >
        >> Also send me the command line.
        >
        >On the first machine t1 :
        >root@t1:~/pktgen-dpdk#

./app/app/x86_64-native-linuxapp-gcc/pktgen \

quoted

        >-c e -n 1 --proc-type auto -- -m '[2:3].1' -P -f t1-t3.pkt -N
        >
        >And on the other machine t3:
        >root@t3:~/pktgen-dpdk#

./app/app/x86_64-native-linuxapp-gcc/pktgen \

quoted

        >-c e -n 1 --proc-type auto -- -m '[2:3].1' -P -f t3-t1.pkt -N


        You need to always start with port numbering for Pktgen with
        zero.

        Change the [2:3].1 to [2:3].0 the reason is you removed one of
        the two ports and Pktgen starts port counting from zero for
        the first available port :-)

        Sorry, I did not spot that sooner.
        >
        >The two "-f" pkt files are attached to this email, I do
        "start 1"
        >manually at the pktgen prompt.
        >
        >Thanks for your time,
        >
        >Sincerely,
        >
        >Laurent
        >
        >
        >> >
        >> >Laurent
        >> >
        >> >
        >>
        >>
        >> Regards,
        >> Keith
        >>
        >>
        >>
        >>
        >
        >


        Regards,
        Keith








--
Moon-Sang Lee, SW Engineer
Email: sang0627@gmail.com
Wisdom begins in wonder. *Socrates*

--
Moon-Sang Lee, SW Engineer
Email: sang0627@gmail.com
Wisdom begins in wonder. *Socrates*

-- 
Moon-Sang Lee, SW Engineer
Email: sang0627@gmail.com
Wisdom begins in wonder. *Socrates*