Re: [PATCH net-next] net: stmmac: dwmac: Disable flushing frames on Rx Buffer Unavailable

patchwork-bot+netdevbpf
2025-11-27T12:10:44Z

Hello:

This patch was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Wed, 26 Nov 2025 00:37:12 +0800 you wrote:
> From: Rohan G Thomas <rohan.g.thomas@altera.com>
>
> In Store and Forward mode, flushing frames when the receive buffer is
> unavailable, can cause the MTL Rx FIFO to go out of sync. This results
> in buffering of a few frames in the FIFO without triggering Rx DMA
> from transferring the data to the system memory until another packet
> is received. Once the issue happens, for a ping request, the packet is
> forwarded to the system memory only after we receive another packet
> and hece we observe a latency equivalent to the ping interval.
>
> [...]

Here is the summary with links:
- [net-next] net: stmmac: dwmac: Disable flushing frames on Rx Buffer Unavailable
https://git.kernel.org/netdev/net-next/c/45d100ee0d6e

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