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Date: Mon, 23 Mar 2015 17:01:42 +0100
From: Olivier MATZ <olivier.matz@6wind.com>
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To: Shankari Vaidyalingam <shankari.v2k6@gmail.com>, 
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Subject: Re: [dpdk-dev] Need info on --vdev option
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Hi Shankari,

On 03/23/2015 04:54 PM, Shankari Vaidyalingam wrote:
> Hi
> 
> I'm trying to do a packet capture on the DPDK interface while running l2fwd
> sample application and injecting packets from a traffic generator.
> I'm getting the below error when I give this command: sudo ./build/l2fw-c
> 0x03 -n 2 -- -p 0x03 --vdev
> 'eth_pcap0,tx_pcap=/home/controller/pkt_capt/try.pcap'
> 
> [...]
> EAL:   0000:00:11.0 not managed by UIO driver, skipping
> ./build/l2fwd: unrecognized option '--vdev'
> ./build/l2fwd [EAL options] -- -p PORTMASK [-q NQ]
>   -p PORTMASK: hexadecimal bitmask of ports to configure
>   -q NQ: number of queue (=ports) per lcore (default is 1)
>   -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to
> disable, 10 default, 86400 maximum)
> EAL: Error - exiting with code: 1
>   Cause: Invalid L2FWD arguments

Please note the position of "--" in your command line. This is
used to separate the arguments of eal and application. As --vdev
is an eal argument, it should go before the "--".

Regards,
Olivier