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From: Mark McLoughlin <markmc@redhat.com>
To: qemu-devel@nongnu.org
Cc: Sven Rudolph <Sven_Rudolph@drewag.de>, Scott Tsai <scottt.tw@gmail.com>
Subject: [Qemu-devel] [PATCH 0/5] Fix packet queueing to allow full tap queue drain
Date: Tue, 27 Oct 2009 18:16:34 +0000	[thread overview]
Message-ID: <1256667399-3149-1-git-send-email-markmc@redhat.com> (raw)


Hey,
        Scott points out that the current behaviour of draining the
entire queue in tap_send() doesn't work with non-virtio NICs because
we drop a packet when the NIC queue fills up.

        This series of patches first disables this behaviour, fixes
various aspects of the queueing logic and then re-enables the behaviour
in a way that works with all NICs.

        The first patch should also be applied to stable-0.11, I'll
follow up with a backport.

        Scott, Sven, if you could test the tap-drain-queue branch from
my tree, that would be great:

  http://repo.or.cz/w/qemu/markmc.git

Thanks,
Mark.

             reply	other threads:[~2009-10-27 18:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-27 18:16 Mark McLoughlin [this message]
2009-10-27 18:16 ` [Qemu-devel] [PATCH 1/5] tap: disable draining queue in one go Mark McLoughlin
2009-10-27 18:16 ` [Qemu-devel] [PATCH 2/5] net: disable receiving if client returns zero Mark McLoughlin
2009-10-27 18:16 ` [Qemu-devel] [PATCH 3/5] net/queue: queue packets even if sender doesn't supply a callback Mark McLoughlin
2009-10-27 18:16 ` [Qemu-devel] [PATCH 4/5] virtio-net: split the has_buffers() logic from can_receive() Mark McLoughlin
2009-10-27 18:16 ` [Qemu-devel] [PATCH 5/5] tap: drain queue in tap_send() Mark McLoughlin
2009-10-30 16:21   ` Anthony Liguori
2009-10-30 16:34     ` Mark McLoughlin
2009-10-30 17:46       ` Anthony Liguori
2009-10-28  3:36 ` [Qemu-devel] Re: [PATCH 0/5] Fix packet queueing to allow full tap queue drain Scott Tsai
2009-10-28  8:49   ` Mark McLoughlin

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