Re: [dpdk-dev] Fwd: problem in running KNI application

[Jose Gavine Cueto <pepedocs@gmail.com>]

Cr,

Sorry, my previous reply is meant for the PM you've sent.  Please ignore
the preceeding reply.

Cheers,
Pepe


On Wed, Dec 25, 2013 at 1:46 PM, Jose Gavine Cueto <pepedocs@gmail.com>wrote:

> Looking back in your first email and reading some of the kni sample
> application code, it seems to me that the application maps an lcore to one
> port.
>
> Based on these snippets,
>
> 1.) --- kni/main.c:930
>
> rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
>
> 2.) -- kni/main.c:379
>
> if (flag == LCORE_RX) {
> RTE_LOG(INFO, APP, "Lcore %u is reading from port %d\n",
>    ............
> } else if (flag == LCORE_TX) {
>  RTE_LOG(INFO, APP, "Lcore %u is writing to port %d\n",
>   .............
>
> #1 runs the lcores one by one (once only) and #2 checks the function
> (tx/rx) to perform for the lcore.  So, if this is correct, then assigning
> lcores to two ports will not work since the logic simply works on lcores
> one by one in one pass only.  IOW, the second param. of --config is useless
> since lcore 1 is already assigned when mapping the first.
>
> Again if this is correct, the kni application is the one restricting this
> option and not DPDK.  I've tried using 1 lcore to both read and write
> to/from 2 ports.
>
> Cheers,
> Pepe
>
>
> On Mon, Oct 28, 2013 at 8:03 PM, cr singh <cr.singh200@gmail.com> wrote:
>
>> Hi Devs,
>>
>> I am trying to run KNI application on my system (whose lstopo result is
>> attached herewith) , basically i am unable to insert correct
>>
>>  --config="(port,lcore_rx,lcore_tx[,lcore_kthread,...])"
>> option while running it.
>>             I am getting this
>> [root@localhost DPDK-1.5.0]# ./examples/kni/build/kni -c 0x3 -n 2 -- -P
>> -p
>> 0x3 --config="(0,2,4,0),(1,1,3,0)"
>>
>> EAL: Cannot read numa node link for lcore 0 - using physical package id
>> instead
>>
>> EAL: Detected lcore 0 as core 0 on socket 0
>>
>> EAL: Cannot read numa node link for lcore 1 - using physical package id
>> instead
>>
>> EAL: Detected lcore 1 as core 1 on socket 0
>>
>> EAL: Setting up hugepage memory...
>>
>> EAL: cannot open /proc/self/numa_maps, consider that all memory is in
>> socket_id 0
>>
>> EAL: Ask a virtual area of 0x398458880 bytes
>>
>> EAL: Virtual area found at 0x9e800000 (size = 0x17c00000)
>>
>> EAL: Ask a virtual area of 0x20971520 bytes
>>
>> EAL: Virtual area found at 0x9d000000 (size = 0x1400000)
>>
>> EAL: Ask a virtual area of 0x8388608 bytes
>>
>> EAL: Virtual area found at 0x9c400000 (size = 0x800000)
>>
>> EAL: Requesting 102 pages of size 4MB from socket 0
>>
>> EAL: TSC frequency is ~2893448 KHz
>>
>> EAL: Master core 0 is ready (tid=b7741800)
>>
>> EAL: Core 1 is ready (tid=b6e44b40)
>>
>> APP: Port ID: 0
>>
>> APP: Rx lcore ID: 2, Tx lcore ID: 4
>>
>> APP: Kernel thread lcore ID: 0
>>
>> APP: Port ID: 1
>>
>> APP: Rx lcore ID: 1, Tx lcore ID: 3
>>
>> APP: Kernel thread lcore ID: 0
>>
>> EAL: Error - exiting with code: 1
>>
>> Cause: lcore id 2 for port 0 receiving not enabled
>>
>> can anybody please explain me the details of the --config option in kni
>> application
>>
>>
>> Thanks in advance
>>
>> --
>>
>> cr singh
>>
>
>
>
> --
> To stop learning is like to stop loving.
>



-- 
To stop learning is like to stop loving.