Re: [PATCH bpf-next v6 4/4] igc: Add launch time support to XDP ZC

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To: "Abdul Rahim, Faizal" <faizal.abdul.rahim@xxxxxxxxxxxxxxx>, Song Yoong Siang <yoong.siang.song@xxxxxxxxx>, "David S . Miller" <davem@xxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Paolo Abeni <pabeni@xxxxxxxxxx>, Simon Horman <horms@xxxxxxxxxx>, Willem de Bruijn <willemb@xxxxxxxxxx>, Florian Bezdeka <florian.bezdeka@xxxxxxxxxxx>, Donald Hunter <donald.hunter@xxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Bjorn Topel <bjorn@xxxxxxxxxx>, Magnus Karlsson <magnus.karlsson@xxxxxxxxx>, Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>, Jonathan Lemon <jonathan.lemon@xxxxxxxxx>, Andrew Lunn <andrew+netdev@xxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Jesper Dangaard Brouer <hawk@xxxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, Joe Damato <jdamato@xxxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxxx>, Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>, Mina Almasry <almasrymina@xxxxxxxxxx>, Daniel Jurgens <danielj@xxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Eduard Zingerman <eddyz87@xxxxxxxxx>, Mykola Lysenko <mykolal@xxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yonghong.song@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>, Jose Abreu <joabreu@xxxxxxxxxxxx>, Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>, Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>, Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
Subject: Re: [PATCH bpf-next v6 4/4] igc: Add launch time support to XDP ZC
From: Choong Yong Liang <yong.liang.choong@xxxxxxxxxxxxxxx>
Date: Mon, 20 Jan 2025 15:24:46 +0800
Cc: netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, intel-wired-lan@xxxxxxxxxxxxxxxx, xdp-hints@xxxxxxxxxxxxxxx
In-reply-to: <84770113-2546-4035-8bd4-bf9cedcfb00f@linux.intel.com>
References: <20250116155350.555374-1-yoong.siang.song@intel.com> <20250116155350.555374-5-yoong.siang.song@intel.com> <84770113-2546-4035-8bd4-bf9cedcfb00f@linux.intel.com>
User-agent: Mozilla Thunderbird



On 20/1/2025 2:25 pm, Abdul Rahim, Faizal wrote:

To be cautious, could we perform a stress test by sending a higher numberof packets with launch time? For example, we could send 200 packets, eachconfigured with a launch time, and verify that the driver continues tofunction correctly afterward.

I agree on this point. Could you perform the same stress test on the STMMACdriver as well?

Follow-Ups:
- RE: [PATCH bpf-next v6 4/4] igc: Add launch time support to XDP ZC
  - From: Song, Yoong Siang

References:
- [PATCH bpf-next v6 0/4] xsk: TX metadata Launch Time support
  - From: Song Yoong Siang
- [PATCH bpf-next v6 4/4] igc: Add launch time support to XDP ZC
  - From: Song Yoong Siang
- Re: [PATCH bpf-next v6 4/4] igc: Add launch time support to XDP ZC
  - From: Abdul Rahim, Faizal

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