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From: Jamal Hadi <hadi@shell.cyberus.ca>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: davem@redhat.com, paulus@samba.org, netdev@oss.sgi.com
Subject: Re: [PATCH, untested] Support for PPPOE on SMP
Date: Wed, 25 Jun 2003 07:19:55 -0400 (EDT)	[thread overview]
Message-ID: <20030625071439.O84062@shell.cyberus.ca> (raw)
In-Reply-To: <20030625072602.529AF2C0B9@lists.samba.org>



On Wed, 25 Jun 2003, Rusty Russell wrote:

> Paul Mackerras says PPPoE relies on receiving packets in wire order,
> and he has bug reports caused by packet reordering.
>

I dont know of any ordering dependencies with pppoe. Is this a bug
in the ppp code?

> This is icky.

Yes it is ;->
The effects of your patch could be achieved in two ways:
a) tie the pppoe related ethernet card to a processor.
b) use a NAPI caopable ethernet card.

Now, if there is a real need to have a serialization queue (i dont see
one) you really dont need to tie to a processor. Just have a single queue
shared by all processors; every one grabs a lock to it.

cheers,
jamal

  reply	other threads:[~2003-06-25 11:19 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 [this message]
2003-06-25 13:21 ` Michal Ostrowski
2003-06-25 13:42   ` Michal Ostrowski
2003-06-25 15:45     ` Jamal Hadi
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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