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Re: [PATCH 10/12] drivers: PMC MSP71xx ethernet driver

To: Jeff Garzik <>
Subject: Re: [PATCH 10/12] drivers: PMC MSP71xx ethernet driver
From: Marc St-Jean <>
Date: Thu, 24 May 2007 15:49:11 -0700
Cc: Marc St-Jean <>,,,
Original-recipient: rfc822;
User-agent: Thunderbird (X11/20070221)
Jeff Garzik wrote:
> Marc St-Jean wrote:
>  > I asked if the remaining section (above) was acceptable so we could 
> retain our
>  > buffer recycling which enhances throughput. I never received a rely 
> so it was
>  > left in my last patch.
>  >
>  > The above comment now answers my part of my initial question. Are you 
> aware of
>  > a better way to implement this or must we lose all our recycling 
> enhancements?
> You can poke around on netdev and ask about skb recycling in a new
> thread, and propose something.
> I just know that having your own custom skb initialization is a
> non-starter.  Any updates the main skb init code receives will
> inevitably -not- be propagate to your code, rapidly leading to an
> unmaintainable disconnect.
> skb recycling in general is an interesting area to explore, and others
> have poked around that area before.  I bet googling for skb recycling
> would turn up some useful thoughts and past efforts.
>         Jeff

I will resend the driver without the skb recycling shortly. We will need
to see if we can allocate resources to contribute to recycling at the
stack level later.


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