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| author |   Horatiu Vultur <horatiu.vultur@microchip.com> | 2023-04-22 16:23:44 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2023-04-24 18:58:04 -0700 |
| commit | 700f11eb2cbea349bda2599b4b676b49d43b4175 (patch) | |
| tree | 62fcef2e01e3dee4946f51350fa56dfec90ee312 /scripts/generate_rust_analyzer.py | |
| parent | Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next (diff) | |
| download | linux-rng-700f11eb2cbea349bda2599b4b676b49d43b4175.tar.xz linux-rng-700f11eb2cbea349bda2599b4b676b49d43b4175.zip | |
lan966x: Don't use xdp_frame when action is XDP_TX
When the action of an xdp program was XDP_TX, lan966x was creating
a xdp_frame and use this one to send the frame back. But it is also
possible to send back the frame without needing a xdp_frame, because
it is possible to send it back using the page.
And then once the frame is transmitted is possible to use directly
page_pool_recycle_direct as lan966x is using page pools.
This would save some CPU usage on this path, which results in higher
number of transmitted frames. Bellow are the statistics:
Frame size: Improvement:
64 ~8%
256 ~11%
512 ~8%
1000 ~0%
1500 ~0%
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/r/20230422142344.3630602-1-horatiu.vultur@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions