From: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Mark McLoughlin <markmc@redhat.com>,
Anthony Liguori <aliguori@us.ibm.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] net: add drop_packets parameter to -net nic
Date: Tue, 26 Apr 2011 17:07:40 +0700 [thread overview]
Message-ID: <BANLkTinccCPHh+oj-dq25yKgz99JSiDyyg@mail.gmail.com> (raw)
In-Reply-To: <BANLkTin4vGrGEkw6MmWXtn-pfXP3fk=zQA@mail.gmail.com>
On Tue, Apr 26, 2011 at 4:14 PM, Stefan Hajnoczi <stefanha@gmail.com> wrote:
> The behavior you are describing sounds like a bug in QEMU's network
> layer. If RX is disabled we should not queue incoming packets.
>
> Have you looked into fixing QEMU so that the queue is disabled when RX
> is disabled?
it's in e1000_can_receive(): it can receive if rx is enabled
(E1000_RCTL_EN) and has enough buffer, which means if the driver
disables rx, packets queue up. Isn't that correct behavior? Sorry I'm
new in this area.
--
Duy
prev parent reply other threads:[~2011-04-26 10:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-25 2:10 [Qemu-devel] [PATCH] net: add drop_packets parameter to -net nic Nguyễn Thái Ngọc Duy
2011-04-25 13:40 ` Stefan Hajnoczi
2011-04-25 13:42 ` Anthony Liguori
2011-04-25 14:06 ` Nguyen Thai Ngoc Duy
2011-04-26 9:14 ` Stefan Hajnoczi
2011-04-26 10:07 ` Nguyen Thai Ngoc Duy [this message]
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