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From: Stephen Hemminger <shemminger@vyatta.com>
To: xiaohui.xin@intel.com
Cc: netdev@vger.kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org, mingo@elte.hu, mst@redhat.com,
	jdike@c2.user-mode-linux.org, Zhao Yu <yzhao81@gmail.com>
Subject: Re: [PATCH v1 3/3] Let host NIC driver to DMA to guest user space.
Date: Sat, 6 Mar 2010 09:18:49 -0800	[thread overview]
Message-ID: <20100306091849.0e5d2a66@s6510> (raw)
In-Reply-To: <1267868318-19268-4-git-send-email-xiaohui.xin@intel.com>

On Sat,  6 Mar 2010 17:38:38 +0800
xiaohui.xin@intel.com wrote:

> From: Xin Xiaohui <xiaohui.xin@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.
> 
> Signed-off-by: Xin Xiaohui <xiaohui.xin@intel.com>
> Signed-off-by: Zhao Yu <yzhao81@gmail.com>
> Sigend-off-by: Jeff Dike <jdike@c2.user-mode-linux.org>
> ---
>  include/linux/netdevice.h |   76 ++++++++++++++++++++++++++++++++++++++++++-
>  include/linux/skbuff.h    |   30 +++++++++++++++--
>  net/core/dev.c            |   32 ++++++++++++++++++
>  net/core/skbuff.c         |   79 +++++++++++++++++++++++++++++++++++++++++----
>  4 files changed, 205 insertions(+), 12 deletions(-)
> 

There are too many ifdef's in this implementation.
I would prefer to see a few functions (with stub for the non-ifdef case),
like the network namespace code.

  reply	other threads:[~2010-03-06 17:19 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-06  9:38 [PATCH v1 0/3] Provide a zero-copy method on KVM virtio-net xiaohui.xin
2010-03-06  9:38 ` [PATCH v1 1/3] A device for zero-copy based " xiaohui.xin
2010-03-06  9:38   ` [PATCH v1 2/3] Provides multiple submits and asynchronous notifications xiaohui.xin
2010-03-06  9:38     ` [PATCH v1 3/3] Let host NIC driver to DMA to guest user space xiaohui.xin
2010-03-06 17:18       ` Stephen Hemminger [this message]
2010-03-08 11:18       ` Michael S. Tsirkin
2010-03-07 11:18     ` [PATCH v1 2/3] Provides multiple submits and asynchronous notifications Michael S. Tsirkin
2010-03-15  8:46       ` Xin, Xiaohui
2010-03-15  9:23         ` Michael S. Tsirkin
2010-03-16  9:32           ` Xin Xiaohui
2010-03-16 11:33             ` [PATCH " Michael S. Tsirkin
2010-03-17  9:48               ` Xin, Xiaohui
2010-03-17 10:27                 ` Michael S. Tsirkin
2010-04-01  9:14                   ` Xin Xiaohui
2010-04-01 11:02                     ` [PATCH " Michael S. Tsirkin
2010-04-02  2:16                       ` Xin, Xiaohui
2010-04-04 11:40                         ` Michael S. Tsirkin
2010-04-06  5:46                           ` Xin, Xiaohui
2010-04-06  7:51                             ` Michael S. Tsirkin
2010-04-07  1:36                               ` Xin, Xiaohui
2010-04-07  8:18                                 ` Michael S. Tsirkin
2010-04-08  9:07                                   ` xiaohui.xin
2010-03-08 11:28   ` [PATCH v1 1/3] A device for zero-copy based on KVM virtio-net Michael S. Tsirkin
2010-04-01  9:27     ` Xin Xiaohui
2010-04-01 11:08       ` [PATCH " Michael S. Tsirkin
2010-04-06  5:41         ` Xin, Xiaohui
2010-04-06  7:49           ` Michael S. Tsirkin
2010-04-07  2:41         ` Xin, Xiaohui
2010-04-07  8:15           ` Michael S. Tsirkin
2010-04-07  9:00             ` xiaohui.xin
2010-04-07 11:17               ` [PATCH " Michael S. Tsirkin
2010-03-07 10:50 ` [PATCH v1 0/3] Provide a zero-copy method " Michael S. Tsirkin
2010-03-09  7:47   ` Xin, Xiaohui

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