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Date:   Wed, 06 Jul 2022 14:50:16 +0000
To:     Johan Almbladh <>
Subject: Re: [PATCH bpf v3] xdp: Fix spurious packet loss in generic XDP TX path


This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <>:

On Tue,  5 Jul 2022 10:23:45 +0200 you wrote:
> The byte queue limits (BQL) mechanism is intended to move queuing from
> the driver to the network stack in order to reduce latency caused by
> excessive queuing in hardware. However, when transmitting or redirecting
> a packet using generic XDP, the qdisc layer is bypassed and there are no
> additional queues. Since netif_xmit_stopped() also takes BQL limits into
> account, but without having any alternative queuing, packets are
> silently dropped.
> [...]

Here is the summary with links:
  - [bpf,v3] xdp: Fix spurious packet loss in generic XDP TX path

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