Re: Legacy Linux kernel support

[Mario Rugiero <mrugiero () gmail com>]

El mar., 8 oct. 2019 a las 18:16, Michael Richardson
(<mcr () sandelman ca>) escribió:
> So I'm hearing that on Linux we should support V2 and V3.
> *That we continue to need V2 support from the kernel for immediate mode*
I think so, yes.

> (This has implications to the *kernel* people as to what they can rip out,
> and we should try to find a plan going forward that reduces code for both of us)
Well, they can rip out whatever they want, we would just be unable to
support that on
newer kernels. They are very unlikely tho, due to their policy of not
breaking userspace
(whenever possible).
If I understand correctly, the current state of affairs is that
TPACKET_V3 is unsuitable
for immediate mode. I'll try to research a bit more on this in the
next few days, but I'm
inclined to believe you and Guy know better about it.
We could try and work something out with the kernel bunch to make it
suitable, but I
don't think I know enough to push that forward by myself.
Maybe (haven't checked) TPACKET_V4 can be used, but I think that's too recent to
require from downstream to get immediate mode working.
_______________________________________________
tcpdump-workers mailing list
tcpdump-workers () lists tcpdump org
https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers