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Re: [PATCH] mac80211: rewrite fragmentation code

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From: Rusty Russell <rusty@...>
To: David Miller <davem@...>
Cc: <herbert@...>, <mb@...>, <johannes@...>, <linux-wireless@...>, <netdev@...>, <ron.rindjunsky@...>, <tomasw@...>, <ivdoorn@...>, <peter.p.waskiewicz.jr@...>
Subject: Re: [PATCH] mac80211: rewrite fragmentation code
Date: Sunday, May 18, 2008 - 11:08 pm

On Saturday 17 May 2008 05:40:39 David Miller wrote:

Ok, the more I ponder this, the more I like it.  It has a very nice side 
benefit for virtio_net: we can xmit a whole bunch of packets before notifying 
the host.  Real NICs might gain similarly.

The bit I can't see is what to do about qdisc if the driver manages its own 
queue(s).  Leave the qdisc as currently in place and have the driver call 
dev_dequeue_skb() (or some wrapper) directly?  Modulo locking issues, that 
should be a fairly simple change.

Thanks,
Rusty.
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Messages in current thread:
[RFC/RFT 3/4] mac80211: use GSO for fragmentation, Johannes Berg, (Wed Apr 30, 8:40 am)
Re: [RFC/RFT 3/4] mac80211: use GSO for fragmentation, Herbert Xu, (Wed May 7, 3:10 am)
Re: [RFC/RFT 3/4] mac80211: use GSO for fragmentation, Johannes Berg, (Wed May 7, 4:50 am)
Re: [RFC/RFT 3/4] mac80211: use GSO for fragmentation, Herbert Xu, (Wed May 7, 5:00 am)
[PATCH] mac80211: rewrite fragmentation code, Johannes Berg, (Wed May 7, 7:22 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Wed May 7, 7:41 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Johannes Berg, (Wed May 7, 7:52 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Wed May 7, 9:05 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Johannes Berg, (Wed May 7, 3:19 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, Michael Buesch, (Wed May 7, 9:48 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Wed May 7, 11:22 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, Michael Buesch, (Thu May 8, 9:00 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Thu May 8, 9:08 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Michael Buesch, (Thu May 8, 9:13 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Thu May 8, 9:32 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Michael Buesch, (Thu May 8, 9:15 am)
Re: [PATCH] mac80211: rewrite fragmentation code, David Miller, (Wed May 7, 11:26 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, Rusty Russell, (Thu May 15, 10:01 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, David Miller, (Fri May 16, 12:58 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Rusty Russell, (Fri May 16, 6:32 am)
Re: [PATCH] mac80211: rewrite fragmentation code, David Miller, (Fri May 16, 3:40 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, Rusty Russell, (Sun May 18, 11:08 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, David Miller, (Mon May 19, 3:03 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Fri May 16, 8:15 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Johannes Berg, (Fri May 16, 6:38 am)
Re: [PATCH] mac80211: rewrite fragmentation code, Herbert Xu, (Thu May 15, 11:28 pm)
Re: [PATCH] mac80211: rewrite fragmentation code, Johannes Berg, (Thu May 8, 5:00 am)