netdev - Re: [PATCH v2 net 3/8] net: dsa: seville: fix buffer size of the queue system

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Date:   Fri, 18 Sep 2020 17:27:40 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, yangbo.lu@....com,
        xiaoliang.yang_1@....com, UNGLinuxDriver@...rochip.com,
        claudiu.manoil@....com, andrew@...n.ch, vivien.didelot@...il.com,
        f.fainelli@...il.com, kuba@...nel.org
Subject: Re: [PATCH v2 net 3/8] net: dsa: seville: fix buffer size of the
 queue system

On 18/09/2020 04:07:25+0300, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> The VSC9953 Seville switch has 2 megabits of buffer split into 4360
> words of 60 bytes each.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> Reviewed-by: Horatiu Vultur <horatiu.vultur@...rochip.com>

Tested-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

> ---
> Changes in v2:
> None.
> 
>  drivers/net/dsa/ocelot/seville_vsc9953.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c
> index 2d6a5f5758f8..83a1ab9393e9 100644
> --- a/drivers/net/dsa/ocelot/seville_vsc9953.c
> +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c
> @@ -1018,7 +1018,7 @@ static const struct felix_info seville_info_vsc9953 = {
>  	.vcap_is2_keys		= vsc9953_vcap_is2_keys,
>  	.vcap_is2_actions	= vsc9953_vcap_is2_actions,
>  	.vcap			= vsc9953_vcap_props,
> -	.shared_queue_sz	= 128 * 1024,
> +	.shared_queue_sz	= 2048 * 1024,
>  	.num_mact_rows		= 2048,
>  	.num_ports		= 10,
>  	.mdio_bus_alloc		= vsc9953_mdio_bus_alloc,
> -- 
> 2.25.1
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com