Hi Cliff
this is what happens with the adapters supporting ntuple filters (82599/X540).
As far as I know 82598 has some limited filtering capabilities that are useless 
in practice.

Alfredo

On Apr 1, 2013, at 3:34 AM, Cliff Burdick <[email protected]> wrote:

> Thanks Alfredo. Since the 82598 doesn't support hardware filtering, but it 
> does support RSS queue filtering, couldn't that be used as a hardware filter? 
> In other words, couldn't you just create a simple rule for specific IPs to go 
> to a certain queue, and everything else will be dropped. Of course it won't 
> allow for complicated filters, but it seems like a start.
> 
> 
> On Tue, Mar 26, 2013 at 8:51 PM, Cliff Burdick <[email protected]> wrote:
> Hi, I have the intel 82598 controller, and I'm wondering what is the most 
> efficient way to filter packets since there's no HW filtering on the chip. I 
> expect that less than 1% of the packets will be filtered out. The options are:
> 
> 1) PF_RING in transparent_mode = 1 with BPF in libpcap
> 2) PF_RING in DMA mode and do the packet filtering in userspace
> 3) PF_RING in transparent_mode = 1 with pf_ring doing the filtering in the 
> kernel
> 
> The reason I'm asking is because my current setup is dropping packets as 
> reported by both pfcount and ifconfig.
> 
> Thanks
> 
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