From: Johannes Berg <johannes@sipsolutions.net>
To: David Miller <davem@davemloft.net>
Cc: tomasw@gmail.com, linville@tuxdriver.com, netdev@vger.kernel.org,
linux-wireless@vger.kernel.org
Subject: Re: [RFC v2] mac80211: assign needed_headroom/tailroom for netdevs
Date: Mon, 05 May 2008 21:57:36 +0200 [thread overview]
Message-ID: <1210017456.4181.23.camel@johannes.berg> (raw)
In-Reply-To: <20080505.125013.129139559.davem@davemloft.net>
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> My bad, it merely allows for devices that can handle
> frag lists in sk_buff as transmit packets.
:)
> I guess you could use this, btw, to take on arbitrary things
> to the front of frames to handle big headers. But that's more
> expensive than just getting the LL header length right.
Not necessarily because we seem to be getting a lot of cloned frames
that we need to copy all the time. If we would remove the ethernet
header and stick that skb into the fraglist of a new skb we'd win.
johannes
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next prev parent reply other threads:[~2008-05-05 19:58 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-04 21:24 [RFC] mac80211: assign needed_headroom/tailroom for netdevs Johannes Berg
2008-05-04 21:31 ` Johannes Berg
2008-05-04 21:32 ` [RFC v2] " Johannes Berg
2008-05-05 0:30 ` David Miller
2008-05-05 7:22 ` Johannes Berg
2008-05-05 14:27 ` Tomas Winkler
2008-05-05 15:22 ` Johannes Berg
2008-05-05 17:15 ` Tomas Winkler
2008-05-05 17:57 ` Johannes Berg
2008-05-05 18:58 ` David Miller
2008-05-05 19:05 ` Johannes Berg
2008-05-05 19:50 ` David Miller
2008-05-05 19:57 ` Johannes Berg [this message]
2008-05-05 20:02 ` David Miller
2008-05-05 20:10 ` Johannes Berg
2008-05-05 20:44 ` David Miller
2008-05-05 20:57 ` Johannes Berg
2008-05-05 21:01 ` David Miller
2008-05-05 22:37 ` David Miller
2008-05-05 22:44 ` Johannes Berg
2008-05-05 23:14 ` David Miller
2008-05-05 23:23 ` Johannes Berg
2008-05-05 23:39 ` David Miller
2008-05-06 0:01 ` Johannes Berg
2008-05-06 0:08 ` David Miller
2008-05-06 11:13 ` Johannes Berg
2008-05-06 1:32 ` Herbert Xu
2008-05-13 5:01 ` David Miller
2008-05-05 23:03 ` David Miller
2008-05-05 23:17 ` Johannes Berg
2008-05-05 23:24 ` David Miller
2008-05-05 23:30 ` Johannes Berg
2008-05-05 23:36 ` Johannes Berg
2008-05-05 23:40 ` David Miller
2008-05-13 3:52 ` David Miller
2008-05-13 9:01 ` Johannes Berg
2008-05-13 9:45 ` David Miller
2008-05-13 10:07 ` Johannes Berg
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