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Re: [Qemu-devel] [PATCH] net/vmxnet3: Flush packets when device gets act
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] net/vmxnet3: Flush packets when device gets activated |
Date: |
Wed, 2 Sep 2015 14:48:57 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Thu, Aug 20, 2015 at 02:45:47AM +0800, Fam Zheng wrote:
> On Tue, 08/18 14:25, Shmulik Ladkani wrote:
> > As of a90a7425cf592a3afeff3eaf32f543b83050ee5c 'tap: Drop tap_can_send'
> > vmxnet3 (with tap networking) can no longer receive once device is
> > deactivated.
> > Alas, as the device is initially "inactive", this brakes vmxnet3
> > receive functionality.
> >
> > vmxnet3_can_receive() checks its internal 'device_active' flag (among
> > other tests).
> > However, as of a90a7425cf, if 'device_active' is false, packets will be
> > queued by tap_send (at qemu_net_queue_send).
> >
> > However, vmxnet3 never flushes the queue, even if the device is later
> > activated.
> >
> > Fix by calling 'qemu_flush_queued_packets()' when vmxnet3 device gets
> > active.
> >
> > Signed-off-by: Shmulik Ladkani <address@hidden>
>
> Looks like the previous patch to fix this fell between the cracks and never
> made it to qemu.git?
>
> http://patchwork.ozlabs.org/patch/489847/
>
> Stefan, any idea?
Shmulik: Please test the patch that Fam linked
- Re: [Qemu-devel] [PATCH] net/vmxnet3: Flush packets when device gets activated,
Stefan Hajnoczi <=