netdev - Re: [PATCH] qca8k: enable port flow control

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Date:   Fri, 19 Jul 2019 11:31:35 +0200
From:   Niklas Cassel <niklas.cassel@...aro.org>
To:     xiaofeis <xiaofeis@...eaurora.org>
Cc:     davem@...emloft.net, vkoul@...nel.org, netdev@...r.kernel.org,
        andrew@...n.ch, linux-arm-msm@...r.kernel.org,
        bjorn.andersson@...aro.org, vivien.didelot@...il.com,
        f.fainelli@...il.com, xiazha@...eaurora.org
Subject: Re: [PATCH] qca8k: enable port flow control

On Fri, Jul 19, 2019 at 10:53:11AM +0800, xiaofeis wrote:
> Set phy device advertising to enable MAC flow control.
> 
> Change-Id: Ibf0f554b072fc73136ec9f7ffb90c20b25a4faae
> Signed-off-by: Xiaofei Shen <xiaofeis@...eaurora.org>
> ---
>  drivers/net/dsa/qca8k.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
> index d93be14..95ac081 100644
> --- a/drivers/net/dsa/qca8k.c
> +++ b/drivers/net/dsa/qca8k.c
> @@ -1,7 +1,7 @@
>  /*
>   * Copyright (C) 2009 Felix Fietkau <nbd@....name>
>   * Copyright (C) 2011-2012 Gabor Juhos <juhosg@...nwrt.org>
> - * Copyright (c) 2015, The Linux Foundation. All rights reserved.
> + * Copyright (c) 2015, 2019, The Linux Foundation. All rights reserved.
>   * Copyright (c) 2016 John Crispin <john@...ozen.org>
>   *
>   * This program is free software; you can redistribute it and/or modify
> @@ -800,6 +800,8 @@
>  	qca8k_port_set_status(priv, port, 1);
>  	priv->port_sts[port].enabled = 1;
>  
> +	phy->advertising |= (ADVERTISED_Pause | ADVERTISED_Asym_Pause);

Drop the unnecessary parentheses.

Question for DSA maintainers: shouldn't this be implemented in the
dsa_switch_ops phylink_validate callback, like it's done for other
dsa drivers?


Kind regards,
Niklas

> +
>  	return 0;
>  }
>  
> -- 
> 1.9.1
>