On Wed, 22 Sep 2021 23:08:15 -0400
Cong Wang <[email protected]> wrote:
> I think you fail to explain why only TCP needs it?
Thanks for the suggestion, I will rewrite the description document.
> This should be useful for all kinds of drops, not just TCP, therefore
> you should consider extending net/core/drop_monitor.c instead of
> just tcp_drop().
Currently, I'll look at the code in `net/core/drop_monitor.c` later
because it only extends tcp.
> Also, kernel does not have to explain it in strings, those SNMP
> counters are already available for user-space, so kernel could
> just use SNMP enums and let user-space interpret them. In many
> cases, you are just adding strings for those SNMP enums.
>
> Thanks.
Since these drops are hardly hot path, why not simply use a string ?
An ENUM will not really help grep games.
--Eric Dumazet
I think `Eric`s point is correct, so strings are used. SNMP is auxiliary,
I can remove it if you find it unfriendly