netdev - Re: [PATCH net-next v5 08/15] idpf: configure resources for RX queues

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Message-ID: <20230817195815.4bf4f2b4@kernel.org>
Date: Thu, 17 Aug 2023 19:58:15 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Tony Nguyen <anthony.l.nguyen@...el.com>
Cc: davem@...emloft.net, pabeni@...hat.com, edumazet@...gle.com,
 netdev@...r.kernel.org, Alan Brady <alan.brady@...el.com>,
 pavan.kumar.linga@...el.com, emil.s.tantilov@...el.com,
 jesse.brandeburg@...el.com, sridhar.samudrala@...el.com,
 shiraz.saleem@...el.com, sindhu.devale@...el.com, willemb@...gle.com,
 decot@...gle.com, andrew@...n.ch, leon@...nel.org, mst@...hat.com,
 simon.horman@...igine.com, shannon.nelson@....com,
 stephen@...workplumber.org, Alice Michael <alice.michael@...el.com>, Joshua
 Hay <joshua.a.hay@...el.com>, Madhu Chittim <madhu.chittim@...el.com>,
 Phani Burra <phani.r.burra@...el.com>
Subject: Re: [PATCH net-next v5 08/15] idpf: configure resources for RX
 queues

On Tue, 15 Aug 2023 17:42:58 -0700 Tony Nguyen wrote:
> +	page_pool_put_page(rxq->pp, rx_buf->page, rx_buf->truesize, false);

I think the truesize here is incorrect, there's new documentation 
for this very case:

https://docs.kernel.org/next/networking/page_pool.html#dma-sync