netdev - Re: [PATCH v9 bpf-next 5/9] bpf: udp: Implement batching for sockets iterator

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Message-ID: <70a8ba17-33af-1fc5-ddf7-dd118e6ce4f5@linux.dev>
Date: Mon, 25 Sep 2023 22:07:42 -0700
From: Martin KaFai Lau <martin.lau@...ux.dev>
To: Aditi Ghag <aditi.ghag@...valent.com>
Cc: sdf@...gle.com, Martin KaFai Lau <martin.lau@...nel.org>,
 bpf@...r.kernel.org, Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH v9 bpf-next 5/9] bpf: udp: Implement batching for sockets
 iterator

On 9/25/23 4:34 PM, Aditi Ghag wrote:
> Just so that I understand the broken case better, are you doing something in your BPF iterator program so that "bpf_seq_read() can only get one sk at a time"?

ah, hit send too early.

Yes, bpf_seq_printf(). It is why I was suggesting to use the bpf_iter/udp[46] to 
reprod by adding start_reuseport_server(). Please see my earlier reply.