Re: [RFC] [PATCH v2 3/3] Let host NIC driver to DMA to guest user space.

2010-04-08 Thread Stephen Hemminger
On Tue, 6 Apr 2010 14:26:29 +0800 Xin, Xiaohui xiaohui@intel.com wrote: How do you deal with the DoS problem of hostile user space app posting huge number of receives and never getting anything. That's a problem we are trying to deal with. It's critical for long term. Currently, we

RE: [RFC] [PATCH v2 3/3] Let host NIC driver to DMA to guest user space.

2010-04-06 Thread Xin, Xiaohui
From: Xin Xiaohui xiaohui@intel.com The patch let host NIC driver to receive user space skb, then the driver has chance to directly DMA to guest user space buffers thru single ethX interface. We want it to be more generic as a zero copy framework. Signed-off-by: Xin Xiaohui

Re: [RFC] [PATCH v2 3/3] Let host NIC driver to DMA to guest user space.

2010-04-02 Thread Stephen Hemminger
On Fri, 2 Apr 2010 15:30:10 +0800 xiaohui@intel.com wrote: From: Xin Xiaohui xiaohui@intel.com The patch let host NIC driver to receive user space skb, then the driver has chance to directly DMA to guest user space buffers thru single ethX interface. We want it to be more generic