[RFC] Enabling IPFIREWALL_FORWARD in run-time

[n j]

> On 10/19/12 4:25 AM, Andrey V. Elsukov wrote:
>>
>> Hi All,
>>
>> Many years ago i have already proposed this feature, but at that time
>> several people were against, because as they said, it could affect
>> performance. Now, when we have high speed network adapters, SMP kernel
>> and network stack, several locks acquired in the path of each packet,
>> and i have an ability to test this in the lab.
>>
>> So, i prepared the patch, that removes IPFIREWALL_FORWARD option from
>> the kernel and makes this functionality always build-in, but it is
>> turned off by default and can be enabled via the sysctl(8) variable
>> net.pfil.forward=1.
>>
>>         http://people.freebsd.org/~ae/pfil_forward.diff
>>
>> Also we have done some tests with the ixia traffic generator connected
>> via 10G network adapter. Tests have show that there is no visible
>> difference, and there is no visible performance degradation.
>>
>> Any objections?

Just another me-too mail - this is great news!

I can't really comment on the quality of the patch or the performance
results as I'm neither an expert in low-level coding nor do I have a
test lab to give this patch a go, but if there are no concrete
objections, I really hope this goes forward.

Thanks for the good work.

Regards,
-- 
Nino