linux-kernel - Re: [PATCH net-next 3/3] net: stmmac: Introducing support for Page Pool

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Message-ID: <d2658b7d-1f24-70f7-fafe-b60a0fd7d240@nvidia.com>
Date:   Thu, 25 Jul 2019 10:45:46 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
CC:     David Miller <davem@...emloft.net>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "lists@...h.nu" <lists@...h.nu>,
        "Joao.Pinto@...opsys.com" <Joao.Pinto@...opsys.com>,
        "alexandre.torgue@...com" <alexandre.torgue@...com>,
        "maxime.ripard@...tlin.com" <maxime.ripard@...tlin.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "wens@...e.org" <wens@...e.org>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "peppe.cavallaro@...com" <peppe.cavallaro@...com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH net-next 3/3] net: stmmac: Introducing support for Page
 Pool


On 25/07/2019 08:44, Jose Abreu wrote:

...

> OK. Can you please test what Ilias mentioned ?
> 
> Basically you can hard-code the order to 0 in 
> alloc_dma_rx_desc_resources():
> - pp_params.order = DIV_ROUND_UP(priv->dma_buf_sz, PAGE_SIZE);
> + pp_params.order = 0;
> 
> Unless you use a MTU > PAGE_SIZE.

I made the change but unfortunately the issue persists.

Jon

-- 
nvpublic