netdev - Re: [RFC PATCH net-2.6] net/ethtool: add multiple queue support to {get,set}

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Message-Id: <20100313.181145.211264593.davem@davemloft.net>
Date:	Sat, 13 Mar 2010 18:11:45 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ajitk@...verengines.com, ajitkhaparde@...il.com
Cc:	jeff@...zik.org, netdev@...r.kernel.org
Subject: Re: [RFC PATCH net-2.6] net/ethtool: add multiple queue support to
 {get,set}_ringparams

From: Ajit Khaparde <ajitkhaparde@...il.com>
Date: Sun, 14 Mar 2010 07:13:45 +0530

> diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
> index b33f316..de6a90a 100644
> --- a/include/linux/ethtool.h
> +++ b/include/linux/ethtool.h
> @@ -206,6 +206,7 @@ struct ethtool_coalesce {
>  /* for configuring RX/TX ring parameters */
>  struct ethtool_ringparam {
>  	__u32	cmd;	/* ETHTOOL_{G,S}RINGPARAM */
> +	__u32	ring_id;
>  
>  	/* Read only attributes.  These indicate the maximum number
>  	 * of pending RX/TX ring entries the driver will allow the

For the millionth time, you cannot change these datastructures
like this without breaking all existing userspace applications
out there.
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