netdev - Re: [PATCH 0/2] pktgen: Clone skb to avoid corruption of skbs in ndo_start

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Date:	Mon, 22 Aug 2011 18:33:34 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Neil Horman <nhorman@...driver.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 0/2] pktgen: Clone skb to avoid corruption of skbs in
 ndo_start_xmit methods (v3)

On Mon, 2011-08-22 at 17:17 +0100, Ben Hutchings wrote:
[...]
> b. The flag means 'safe to send shared skbs in the way ptkgen does', and
> the restrictions this places on the user and driver should be specified.

We could specify something like:

        The ndo_start_xmit operation for this interface either does not
        modify the given skb or modifies it idempotently. A single skb
        may be transmitted repeatedly on a single queue of this
        interface, but not on multiple queues or on multiple interfaces.

Does that look correct?

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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