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Re: Irq architecture for multi-core network driver.

To: ddaney@caviumnetworks.com
Subject: Re: Irq architecture for multi-core network driver.
From: David Miller <davem@davemloft.net>
Date: Sat, 24 Oct 2009 06:23:39 -0700 (PDT)
Cc: cfriesen@nortel.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org
In-reply-to: <4AE0DB98.1000101@caviumnetworks.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <4AE0D14B.1070307@caviumnetworks.com> <4AE0D72A.4090607@nortel.com> <4AE0DB98.1000101@caviumnetworks.com>
Sender: linux-mips-bounce@linux-mips.org
From: David Daney <ddaney@caviumnetworks.com>
Date: Thu, 22 Oct 2009 15:24:24 -0700

> Certainly this is one mode of operation that should be supported, but
> I would also like to be able to go for raw throughput and have as many
> cores as possible reading from a single queue (like I currently have).

You can't do this, at least within the same flow, since as you even
mention in your original posting this can result in packet reordering
which we must avoid as much as is possible.

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