Kernel

[RFC PATCH v8 07/16] Modify netdev_alloc_page() to get external buffer
From: Xin Xiaohui <xiaohui.xin(a)intel.com> Currently, it can get external buffers from mp device. Signed-off-by: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Zhao Yu <yzhao81new(a)gmail.com> Reviewed-by: Jeff Dike <jdike(a)linux.intel.com> --- net/core/skbuff.c | 27 +++++++++++++++++++++++... 29 Jul 2010 07:29

[RFC PATCH v8 08/16] Modify netdev_free_page() to release external buffer
From: Xin Xiaohui <xiaohui.xin(a)intel.com> Currently, it can get external buffers from mp device. Signed-off-by: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Zhao Yu <yzhao81new(a)gmail.com> Reviewed-by: Jeff Dike <jdike(a)linux.intel.com> --- include/linux/skbuff.h | 4 +++- net/core/skbuff.c | ... 29 Jul 2010 07:29

[RFC PATCH v8 01/16] Add a new structure for skb buffer from external.
From: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Zhao Yu <yzhao81new(a)gmail.com> Reviewed-by: Jeff Dike <jdike(a)linux.intel.com> --- include/linux/skbuff.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/include/linux/s... 29 Jul 2010 07:29

[RFC PATCH v8 15/16] An example how to modifiy NIC driver to use napi_gro_frags() interface
From: Xin Xiaohui <xiaohui.xin(a)intel.com> This example is made on ixgbe driver. It provides API is_rx_buffer_mapped_as_page() to indicate if the driver use napi_gro_frags() interface or not. The example allocates 2 pages for DMA for one ring descriptor using netdev_alloc_page(). When packets is coming, using na... 29 Jul 2010 07:29

[RFC PATCH v8 13/16] Add a kconfig entry and make entry for mp device.
From: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Xin Xiaohui <xiaohui.xin(a)intel.com> Reviewed-by: Jeff Dike <jdike(a)linux.intel.com> --- drivers/vhost/Kconfig | 10 ++++++++++ drivers/vhost/Makefile | 2 ++ 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/vhost/Kconfig b/d... 29 Jul 2010 07:29

[RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net.
We provide an zero-copy method which driver side may get external buffers to DMA. Here external means driver don't use kernel space to allocate skb buffers. Currently the external buffer can be from guest virtio-net driver. The idea is simple, just to pin the guest VM user space and then let host NIC driver has ... 29 Jul 2010 07:29

[RFC PATCH v8 09/16] Don't do skb recycle, if device use external buffer.
From: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Xin Xiaohui <xiaohui.xin(a)intel.com> Signed-off-by: Zhao Yu <yzhao81new(a)gmail.com> Reviewed-by: Jeff Dike <jdike(a)linux.intel.com> --- net/core/skbuff.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/net/core/sk... 29 Jul 2010 07:29

[PATCH 09/10 v2] oss: msnd: check request_region() return value
request_region() may fail, if so return -EBUSY. Signed-off-by: Kulikov Vasiliy <segooon(a)gmail.com> --- sound/oss/msnd_pinnacle.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c index bfaac5f..cd70b9a 100644 --- a/sound/oss/... 29 Jul 2010 07:29

Bus error on make allyesconfig, kernelbuild with HEAD
Hi all! Building the linux kernel, as well as doing a"make allyesconfig" on a fresh checkout of linux HEAD results in the same Bus Error in fixdep (details below). This is a i5 box running 32bit Ubuntu Lucid with plenty of (free) RAM. Haven't found any hints to what might be wrong on scanning over the web ar... 30 Jul 2010 05:20

[PATCH 01/10 v2] arm: leds: check return value of request_region()
request_region() may fail, if so return -EBUSY. Signed-off-by: Kulikov Vasiliy <segooon(a)gmail.com> --- arch/arm/mach-shark/leds.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c index c9e32de..cb1a8f2 100644 --- a/arch/arm/mac... 29 Jul 2010 07:29