From: Stephen Hemminger <shemminger@osdl.org>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] netpoll: rework skb transmit queue
Date: Fri, 20 Oct 2006 12:31:37 -0700 [thread overview]
Message-ID: <20061020123137.3cd765af@freekitty> (raw)
In-Reply-To: <20061020.122753.45515833.davem@davemloft.net>
On Fri, 20 Oct 2006 12:27:53 -0700 (PDT)
David Miller <davem@davemloft.net> wrote:
> From: Stephen Hemminger <shemminger@osdl.org>
> Date: Fri, 20 Oct 2006 08:40:15 -0700
>
> > The only user of the drop hook was netconsole, and I fixed that path.
> > This probably breaks netdump, but that is out of tree, so it needs
> > to fix itself.
>
> I believe that netdump needs to requeue things because dropping the
> packet is simply not allowed, and the ->drop callback gives the
> netdump code a way to handle things without actually dropping the
> packet. If that's true, you can't just free the SKB on it.
>
> Are you sure your new TX strategy can avoid such drops properly?
Yes, it has a queue. if it can't send it waits and retries.
>
> Please take a quick peek at the netdump code, it's available, and make
> some reasonable effort to determine whether it can still work with
> your new code.
Where, I'm not digging in side some RHEL rpm patch pile to find it.
--
Stephen Hemminger <shemminger@osdl.org>
next prev parent reply other threads:[~2006-10-20 19:31 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-19 17:15 [PATCH 0/3] netpoll/netconsole fixes Stephen Hemminger
2006-10-19 17:15 ` [PATCH 1/3] netpoll: initialize skb for UDP Stephen Hemminger
2006-10-20 6:58 ` David Miller
2006-10-19 17:15 ` [PATCH 2/3] netpoll: rework skb transmit queue Stephen Hemminger
2006-10-20 7:15 ` David Miller
2006-10-20 15:18 ` Stephen Hemminger
2006-10-20 19:24 ` David Miller
2006-10-20 19:25 ` Stephen Hemminger
2006-10-20 19:52 ` David Miller
2006-10-20 20:14 ` Stephen Hemminger
2006-10-20 20:25 ` Stephen Hemminger
2006-10-21 5:00 ` Dave Jones
2006-10-21 6:38 ` David Miller
2006-10-20 15:40 ` Stephen Hemminger
2006-10-20 19:27 ` David Miller
2006-10-20 19:31 ` Stephen Hemminger [this message]
2006-10-20 20:42 ` David Miller
2006-10-20 20:48 ` Stephen Hemminger
2006-10-20 21:01 ` Andi Kleen
2006-10-20 21:08 ` David Miller
2006-10-20 21:16 ` Andi Kleen
2006-10-20 21:41 ` Stephen Hemminger
2006-10-20 21:01 ` David Miller
2006-10-20 22:30 ` [PATCH 1/3] netpoll: use sk_buff_head for txq Stephen Hemminger
2006-10-23 3:42 ` David Miller
2006-10-23 19:02 ` [PATCH 1/5] " Stephen Hemminger
2006-10-23 19:04 ` [PATCH 5/5] netpoll: interface cleanup Stephen Hemminger
2006-10-24 6:03 ` [PATCH 1/5] netpoll: use sk_buff_head for txq David Miller
2006-10-24 14:51 ` Stephen Hemminger
2006-10-24 14:14 ` Stephen Hemminger
[not found] ` <20061023115111.0d69846e@dxpl.pdx.osdl.net>
2006-10-23 19:02 ` [PATCH 2/5] netpoll: cleanup queued transmit Stephen Hemminger
[not found] ` <20061023115337.1f636ffb@dxpl.pdx.osdl.net>
2006-10-23 19:02 ` [PATCH 4/5] netpoll: move drop hook inline Stephen Hemminger
2006-10-23 19:03 ` [PATCH 3/5] netpoll: cleanup transmit retry logic Stephen Hemminger
2006-10-20 22:32 ` [PATCH 2/3] netpoll: use device xmit directly Stephen Hemminger
2006-10-20 22:35 ` [PATCH 3/3] netpoll: retry logic cleanup Stephen Hemminger
2006-10-19 17:15 ` [PATCH 3/3] netpoll: use skb_buff_head for skb cache Stephen Hemminger
2006-10-20 6:57 ` [PATCH 0/3] netpoll/netconsole fixes Andrew Morton
2006-10-20 7:16 ` David Miller
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