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Date: Fri, 16 Jan 2015 10:56:28 +0000
From: Bruce Richardson <bruce.richardson@intel.com>
To: Kamraan Nasim <knasim@sidebandnetworks.com>
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Cc: dev@dpdk.org, Ean Houts <ehouts@sidebandnetworks.com>,
 Jun Du <jdu@sidebandnetworks.com>
Subject: Re: [dpdk-dev] Does I210 NIC support Flow director filters?
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On Thu, Jan 15, 2015 at 08:06:52PM -0500, Kamraan Nasim wrote:
> >>> update the RSS RETA table so that traffic doesn't get sent
> >> to that queue via RSS. Is that what you are asking?
> 
> Thanks Bruce, that's exactly it.  Basically each filter will forward
> traffic to a unique RSS queue which can allow me to calculate filter match
> statistics for that queue(or filter). At that point I would like to drop
> the filtered packet. Is there any way to drop the filtered packet in the
> RSS queue without doing a rte_eth_rx_burst() and dropping it then?
> 
> --Kam
>
I don't believe there is any other way to drop them from the queue other than
RX and drop. It's not the most efficient way to do so (since you have to allocate,
fill and free an mbuf), but it's the only way that an app can do so without
adding new functions to the driver(s).

/Bruce