[Bro] Question about packet-bricks

[Asim Jamshed]

Hi,

The utilObj functions are actually referenced in 
scripts/startup-one-thread.lua
startup script file. So you should start your packet-bricks using the 
following
command:

# bin/bricks -f scripts/startup-one-thread.lua

I suggest that you go through the scripts/startup-one-thread.lua and
scripts/utils.lua files (after reading the README file) before using
packet-bricks.

Thanks,
--Asim

On 03/26/2015 07:01 PM, C. L. Martinez wrote:
> Hi all,
>
>   I am trying to use packet-bricks in a FreeBSD 10.1 host with netmap
> enabled. Following README, I have executed the following commands:
>
> [     pmain(): line  463] Executing (null)
> [print_version(): line  345] BRICKS Version 0.1-alpha
> bricks> BRICKS.help()
> BRICKS Commands:
>      help()
>      print_status()
>      show_stats()
>      shutdown()
>    Available subsystems within BRICKS have their own help() methods:
>      PktEngine
> bricks> utilObj:enable_nmpipes()
> [    report(): line  222] stdin:1: attempt to index global 'utilObj'
> (a nil value)
> stack traceback:
>      stdin:1: in main chunk
>      [C]: ?bricks> pe = PktEngine.new("e0")
> bricks> print_status()
> [    report(): line  222] stdin:1: attempt to call global
> 'print_status' (a nil value)
> stack traceback:
>      stdin:1: in main chunk
>      [C]: ?bricks> pe = PktEngine.new("e0", 1024, 1)
> [pktengine_new(): line  178] Engine with name: e0 already exists
> bricks> lb = Brick.new("LoadBalancer", 2)
> bricks> lb:connect_input("vtnet2")
> bricks> lb:connect_output("vtnet2{0", "vtnet2{1", "em0")
> bricks> pe:link(lb)
> 546.982488 nm_open [444] overriding ARG3 0
> 546.982547 nm_open [457] overriding ifname vtnet2 ringid 0x0 flags 0x1
> [netmap_link_iface(): line  175] Wait for 2 secs for phy reset
> [brick_link(): line  101] Linking e0 with link vtnet2 with batch size:
> 512 and qid: -1
> 549.055808 nm_open [444] overriding ARG3 0
> [netmap_create_channel(): line  761] zerocopy for vtnet2 --> vtnet2{0
> (index: 0) enabled
> [netmap_create_channel(): line  766] Created netmap:vtnet2{0 interface
> 549.101244 nm_open [444] overriding ARG3 0
> [netmap_create_channel(): line  761] zerocopy for vtnet2 --> vtnet2{1
> (index: 1) enabled
> [netmap_create_channel(): line  766] Created netmap:vtnet2{1 interface
> 549.142483 nm_open [444] overriding ARG3 0
> [netmap_create_channel(): line  761] zerocopy for vtnet2 --> em0
> (index: 2) enabled
> [netmap_create_channel(): line  766] Created netmap:em0 interface
> bricks> pe:start()
> bricks> [initiate_backend(): line  346] Engine e0 is listening on port 1239
> pe.show_stats()
> [    report(): line  222] stdin:1: bad argument #1 to 'show_stats'
> (userdata expected, got no value)
> stack traceback:
>      [C]: in function 'show_stats'
>      stdin:1: in main chunk
>      [C]: ?bricks> show.stats()
> [    report(): line  222] stdin:1: attempt to index global 'show' (a nil value)
> stack traceback:
>      stdin:1: in main chunk
>      [C]: ?bricks>
>
> dmesg shows me the following:
>
> 544.880658 [ 407] vtnet_netmap_config       vtnet config txq=1,
> txd=512 rxq=1, rxd=512
> 544.946020 [ 676] netmap_update_config      configuration changed (but fine)
> 544.981566 [1219] netmap_mem_global_config  reconfiguring
> 545.014116 [ 818] netmap_config_obj_allocator XXX aligning object by 1 bytes
> 546.288980 [ 407] vtnet_netmap_config       vtnet config txq=1,
> txd=512 rxq=1, rxd=512
> 546.353092 [  79] vtnet_netmap_free_bufs    freed 256 mbufs, 0 netmap
> bufs on 1 queues
> 546.982572 [ 407] vtnet_netmap_config       vtnet config txq=1,
> txd=512 rxq=1, rxd=512
> 547.011973 [ 407] vtnet_netmap_config       vtnet config txq=1,
> txd=512 rxq=1, rxd=512
> 549.055837 [ 325] netmap_pipe_krings_create 0xfffff80110f9ac00: case
> 1, create everything
> 549.101272 [ 325] netmap_pipe_krings_create 0xfffff801105e0800: case
> 1, create everything
> em0: link state changed to DOWN
> em0: link state changed to UP
>
> As you can see, stats failed. When I try to use tcpdump:
>
> root at nsm02:/dev # tcpdump -i 'netmap:vtnet2{0'
> tcpdump: netmap:vtnet2{0: No such device exists
> (BIOCSETIF failed: Device not configured)
>
> Please, any help??
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