linux-kernel - Re: [net-next PATCH v2 0/3] Broadcast/Multicast rate limit via Ethtool Coalesce

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Message-Id: <20140709.164420.157865201153845876.davem@davemloft.net>
Date:	Wed, 09 Jul 2014 16:44:20 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mugunthanvnm@...com
Cc:	netdev@...r.kernel.org, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [net-next PATCH v2 0/3] Broadcast/Multicast rate limit via
 Ethtool Coalesce

From: Mugunthan V N <mugunthanvnm@...com>
Date: Wed, 9 Jul 2014 12:44:07 +0530

> A system/cpu can be loaded by a hacker with flooding of broadcast or
> multicast packets, to prevent this some Ethernet controllers like CPSW
> provide a mechanism to limit the broadcast/multicast packet rate via
> hardware limiters. This patch series enables this feature via
> Ethtool Coalesce.

This is pretty bogus if you ask me.

What is the difference from accepting a high rate of unicast packets?
I say it is no different.

Therefore, this feature makes no sense to me at all.
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