From: Jamal Hadi <hadi@shell.cyberus.ca>
To: Michal Ostrowski <mostrows@watson.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
"David S. Miller" <davem@redhat.com>,
Paul MacKerras <paulus@samba.org>,
netdev@oss.sgi.com, fcusack@samba.org,
"David F. Skoll" <dfs@roaringpenguin.com>,
James Carlson <carlson@workingcode.com>
Subject: Re: [PATCH, untested] Support for PPPOE on SMP
Date: Wed, 25 Jun 2003 11:45:07 -0400 (EDT) [thread overview]
Message-ID: <20030625114243.F84526@shell.cyberus.ca> (raw)
In-Reply-To: <1056548544.1944.1488.camel@brick.watson.ibm.com>
Have you tested the case where the ethernet card is tied to only
CPU in SMP? That guarantees ordering.
Ordering per protocol should really be that protocols problem to
solve. If you cant solve it you have a bug.
cheers,
jamal
On Wed, 25 Jun 2003, Michal Ostrowski wrote:
>
> Perhaps instead of using a special queue that keeps packets ordered, we
> add a tag to each skb as it comes off the card and let higher level
> protocols use this to re-order things themselves? (And add some option
> for AF_PACKET sockets to optionally enforce this ordering in presenting
> packets to apps, or not.)
>
> This may require modifying all drivers, but it does provide for an
> explicit mechanism that can be made mandatory for drivers, avoids
> special casing, avoids dumping work onto a single CPU and leaves it up
> to the higher-level code to figure out ordering, if it wants to.
>
> --
> Michal Ostrowski <mostrows@watson.ibm.com>
>
>
>
>
next prev parent reply other threads:[~2003-06-25 15:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-25 7:24 [PATCH, untested] Support for PPPOE on SMP Rusty Russell
2003-06-25 11:19 ` Jamal Hadi
2003-06-25 13:21 ` Michal Ostrowski
2003-06-25 13:42 ` Michal Ostrowski
2003-06-25 15:45 ` Jamal Hadi [this message]
2003-06-25 17:27 ` Michal Ostrowski
2003-06-25 22:17 ` Paul Mackerras
2003-06-25 22:56 ` Michal Ostrowski
2003-06-25 16:15 ` Stephen Hemminger
2003-06-25 16:22 ` Jamal Hadi
2003-06-25 16:39 ` Stephen Hemminger
2003-06-25 17:07 ` Jamal Hadi
2003-06-25 17:40 ` Stephen Hemminger
2003-06-25 18:00 ` Michal Ostrowski
2003-06-25 22:22 ` Paul Mackerras
2003-06-25 22:53 ` Ben Greear
2003-06-25 21:33 ` David S. Miller
2003-06-25 22:06 ` Michal Ostrowski
2003-06-26 1:04 ` David S. Miller
2003-06-26 3:57 ` Rusty Russell
2003-06-26 3:59 ` David S. Miller
2003-06-26 8:17 ` Rusty Russell
2003-06-26 8:55 ` David S. Miller
2003-06-26 10:47 ` James Carlson
2003-06-26 10:51 ` James Carlson
2003-06-26 23:18 ` Jamal Hadi
2003-06-27 11:39 ` James Carlson
2003-06-27 12:12 ` Paul Mackerras
2003-06-27 13:19 ` James Carlson
2003-06-27 14:59 ` Stephen Hemminger
2003-06-27 15:27 ` James Carlson
2003-06-28 2:21 ` Jamal Hadi
2003-06-28 22:51 ` Frank Cusack
2003-06-26 11:37 ` Michal Ostrowski
2003-06-25 16:01 ` Jason Lunz
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