From: David Miller <davem@davemloft.net>
To: johannes@sipsolutions.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 12:50:13 -0700 (PDT) [thread overview]
Message-ID: <20080505.125013.129139559.davem@davemloft.net> (raw)
In-Reply-To: <1210014316.4181.14.camel@johannes.berg>
From: Johannes Berg <johannes@sipsolutions.net>
Date: Mon, 05 May 2008 21:05:15 +0200
> On Mon, 2008-05-05 at 11:58 -0700, David Miller wrote:
> > From: Johannes Berg <johannes@sipsolutions.net>
> > Date: Mon, 05 May 2008 19:57:34 +0200
> >
> > > NETIF_F_FRAGLIST I haven't understood, but it seems to apply mostly for
> > > IP fragmentation?
> >
> > That's right. It's for cards that can do IP fragmentation in
> > hardware.
>
> What does "do IP fragmentation in hardware" mean?
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.
next prev parent reply other threads:[~2008-05-05 19:50 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
[not found] ` <1209936253.7304.10.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-04 21:31 ` Johannes Berg
2008-05-04 21:32 ` [RFC v2] " Johannes Berg
[not found] ` <1209936745.7304.16.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 0:30 ` David Miller
[not found] ` <20080504.173051.133197507.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-05 7:22 ` Johannes Berg
[not found] ` <1209972139.3655.9.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 14:27 ` Tomas Winkler
[not found] ` <1ba2fa240805050727r2060b0b4x3a9b3240647b66b1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-05-05 15:22 ` Johannes Berg
[not found] ` <1210000923.8245.26.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 17:15 ` Tomas Winkler
2008-05-05 17:57 ` Johannes Berg
2008-05-05 18:58 ` David Miller
[not found] ` <20080505.115855.137964071.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-05 19:05 ` Johannes Berg
2008-05-05 19:50 ` David Miller [this message]
2008-05-05 19:57 ` Johannes Berg
2008-05-05 20:02 ` David Miller
2008-05-05 20:10 ` Johannes Berg
[not found] ` <1210018214.4181.27.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 20:44 ` David Miller
2008-05-05 20:57 ` Johannes Berg
[not found] ` <1210021066.4181.41.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 21:01 ` David Miller
2008-05-05 22:37 ` David Miller
2008-05-05 22:44 ` Johannes Berg
[not found] ` <1210027447.8012.15.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 23:14 ` David Miller
[not found] ` <20080505.161458.46071527.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-05 23:23 ` Johannes Berg
[not found] ` <1210029835.8012.30.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 23:39 ` David Miller
[not found] ` <20080505.163916.239187195.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-06 0:01 ` Johannes Berg
[not found] ` <1210032076.8012.49.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-06 0:08 ` David Miller
[not found] ` <20080505.170805.127854312.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
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
[not found] ` <20080505.160328.203996832.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-05 23:17 ` Johannes Berg
[not found] ` <1210029435.8012.25.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 23:24 ` David Miller
[not found] ` <20080505.162424.176435653.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-05 23:30 ` Johannes Berg
2008-05-05 23:36 ` Johannes Berg
[not found] ` <1210030591.8012.41.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-05 23:40 ` David Miller
2008-05-13 3:52 ` David Miller
[not found] ` <20080512.205224.12536510.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2008-05-13 9:01 ` Johannes Berg
[not found] ` <1210669273.3646.51.camel-YfaajirXv214zXjbi5bjpg@public.gmane.org>
2008-05-13 9:45 ` David Miller
2008-05-13 10:07 ` Johannes Berg
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