[dpdk-dev] FW: MENNIC1.2 host-sim crashed for me

[Srinivas Reddi]

Hi Hiroshi,
Thanks for ur reply .. I have moved forward little bit.

MEMNIC-1.2

1. I started qemu and then started host-sim application

Qemu command :
qemu-system-x86_64 -enable-kvm -cpu host   -boot c -hda /home/vm-images/vm1-clone.img -m 8192M -smp 3 --enable-kvm -name vm1 -vnc :1 -pidfile /tmp/vm1.pid -drive file=fat:rw:/tmp/share  -device ivshmem,size=16,shm=ivshm
vvfat fat:rw:/tmp/share chs 1024,16,63

2.Host-sim app command :
3.[root at localhost host-sim]# ./memnic-host-sim   /dev/shm/ivshm
4.On the guest compiled  memnic-1.2 .
5.Inserted memnic.ko
6.Found and interface ens4  after insmod memnic.ko

[root at localhost memnic-1.2]# ifconfig -a
ens3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::5054:ff:fe12:3456  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:12:34:56  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8  bytes 648 (648.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens4: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 00:09:c0:00:13:37  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 386  bytes 33548 (32.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 386  bytes 33548 (32.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

7.lspci on the guest

[root at localhost memnic-1.2]# lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
00:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 03)
00:04.0 RAM memory: Red Hat, Inc Device 1110 [root at localhost memnic-1.2]#

8.on the Guest  ran test pmd application

[root at localhost test-pmd]# ./testpmd -c7 -n3  -- --d /usr/local/lib/librte_pmd_memnic_copy.so  -i --nb-cores=1 --nb-ports=1 --port-topology=chained
EAL: Detected lcore 0 as core 0 on socket 0
EAL: Detected lcore 1 as core 0 on socket 0
EAL: Detected lcore 2 as core 0 on socket 0
EAL: Setting up memory...
EAL: Ask a virtual area of 0x40000000 bytes
EAL: Virtual area found at 0x7f5514000000 (size = 0x40000000)
EAL: Requesting 512 pages of size 2MB from socket 0
EAL: TSC frequency is ~3092833 KHz
EAL: Master core 0 is ready (tid=54398880)
EAL: Core 1 is ready (tid=135f8700)
EAL: Core 2 is ready (tid=12df7700)
EAL: PCI device 0000:00:03.0 on NUMA socket -1
EAL:   probe driver: 8086:100e rte_em_pmd
EAL:   0000:00:03.0 not managed by UIO driver, skipping
EAL: Error - exiting with code: 1
  Cause: No probed ethernet devices - check that CONFIG_RTE_LIBRTE_IGB_PMD=y and that CONFIG_RTE_LIBRTE_EM_PMD=y and that CONFIG_RTE_LIBRTE_IXGBE_PMD=y in your configuration file
[root at localhost test-pmd]#

How can I bind 00:04.0 Ram controller to dpdk application (test-pmd ) .
How DPDK test-pmd application finds the memnic device.

9.Am I missing any steps in the guest configurations or host configuration .
10.Is there any better manual for testing MEMNIC-1.2 or better understanding .
11.Is there any better application  to test MEMNIC   for VM-VM  or VM to host data transfer .

Thanks &  regards,
Srinivas.



-----Original Message-----
From: Hiroshi Shimamoto [mailto:h-shimamoto at ct.jp.nec.com]
Sent: Tuesday, July 15, 2014 5:31 AM
To: Srinivas Reddi; dev at dpdk.org
Subject: RE: MENNIC1.2 host-sim crashed for me

Hi,

> Subject: [dpdk-dev] MENNIC1.2 host-sim crashed for me
>
> Hi,
> I want to run MEMNIC 1.2 application .
>
> 1.       I compiled DPDK1.6
>
> 2.       I compiled memnic.12
>
> 3.       And while running memnic-hostsim app    got strucked
>
> 4.
>
> 5.       [root at localhost host-sim]# ./memnic-host-sim /dev/shm/ivshm
>
> Bus error (core dumped)
>
>
>
> Core was generated by `./memnic-host-sim  /dev/shm/ivshm'.
>
> Program terminated with signal SIGBUS, Bus error.
>
> #0  0x0000003a82e894e4 in memset () from /lib64/libc.so.6
>
> Missing separate debuginfos, use: debuginfo-install
> glibc-2.18-11.fc20.x86_64
>
> (gdb) bt
>
> #0  0x0000003a82e894e4 in memset () from /lib64/libc.so.6
>
> #1  0x00000000004008a3 in init_memnic (nic=0x7ffff6fe2000) at
> host-sim.c:55
>
> #2  0x0000000000400a8a in main (argc=2, argv=0x7fffffffe4a8) at
> host-sim.c:106
>
> (gdb)
>
>
>
>
>
> Got error at line 55 .. saying nic is read only..


I have never tried host-sim yet though.
I guess it's the cause that host-sim doesn't increase the shared memory size.
Could you try booting qemu first with -device ivshmem,size=16,shm=/ivshm then run host-sim?

thanks,
Hiroshi

>
>
>
> 53 static void init_memnic(struct memnic_area *nic)
>
> 54 {
>
> 55     memset(nic, 0, sizeof(*nic));
>
> 56     nic->hdr.magic = MEMNIC_MAGIC;
>
> 57     nic->hdr.version = MEMNIC_VERSION;
>
> 58     /* 00:09:c0:00:13:37 */
>
> 59     nic->hdr.mac_addr[0] = 0x00;
>
> 60     nic->hdr.mac_addr[1] = 0x09;
>
> 61     nic->hdr.mac_addr[2] = 0xc0;
>
> 62     nic->hdr.mac_addr[3] = 0x00;
>
> 63     nic->hdr.mac_addr[4] = 0x13;
>
> 64     nic->hdr.mac_addr[5] = 0x37;
>
> 65 }
>
>
>
> Thanks,
>
> Srinivas.
>
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