linux-kernel - Re: [PATCH net] net: ti: icssg-prueth: Fix packet handling for XDP

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Message-ID: <20250613180913.5e164263@kernel.org>
Date: Fri, 13 Jun 2025 18:09:13 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Meghana Malladi <m-malladi@...com>
Cc: <namcao@...utronix.de>, <john.fastabend@...il.com>, <hawk@...nel.org>,
 <daniel@...earbox.net>, <ast@...nel.org>, <pabeni@...hat.com>,
 <edumazet@...gle.com>, <davem@...emloft.net>, <andrew+netdev@...n.ch>,
 <bpf@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <netdev@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
 <srk@...com>, Vignesh Raghavendra <vigneshr@...com>, Roger Quadros
 <rogerq@...nel.org>, <danishanwar@...com>
Subject: Re: [PATCH net] net: ti: icssg-prueth: Fix packet handling for
 XDP_TX

On Thu, 12 Jun 2025 15:15:23 +0530 Meghana Malladi wrote:
> While transmitting XDP frames for XDP_TX, page_pool is
> used to get the DMA buffers (already mapped to the pages)
> and need to be freed/reycled once the transmission is complete.
> This need not be explicitly done by the driver as this is handled
> more gracefully by the xdp driver while returning the xdp frame.
> __xdp_return() frees the XDP memory based on its memory type,
> under which page_pool memory is also handled. This change fixes
> the transmit queue timeout while running XDP_TX.

Makes sense, but since this is a fix it needs a Fixes tag.
Please add one and repost.
-- 
pw-bot: cr