diff options
| author | Tanner Love <tannerlove@google.com> | 2020-11-06 13:07:40 -0500 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-09 16:41:40 -0800 |
| commit | 9c661b0b85444e426d3f23250305eeb16f6ffe88 (patch) | |
| tree | ccd38de01ae8ce6c1ca2ff0c2d5b14eb10ae73ad /tools | |
| parent | a3ce2b109a59ee9670706ae8126dcc04cfe261cd (diff) | |
net/packet: make packet_fanout.arr size configurable up to 64K
One use case of PACKET_FANOUT is lockless reception with one socket
per CPU. 256 is a practical limit on increasingly many machines.
Increase PACKET_FANOUT_MAX to 64K. Expand setsockopt PACKET_FANOUT to
take an extra argument max_num_members. Also explicitly define a
fanout_args struct, instead of implicitly casting to an integer. This
documents the API and simplifies the control flow.
If max_num_members is not specified or is set to 0, then 256 is used,
same as before.
Signed-off-by: Tanner Love <tannerlove@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions