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Message-Id: <8cf1dad79db07e71707cfd256927ef3324adfda9.1285385607.git.xiaohui.xin@intel.com> Date: Sat, 25 Sep 2010 12:27:25 +0800 From: xiaohui.xin@...el.com To: netdev@...r.kernel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, mingo@...e.hu, davem@...emloft.net, herbert@...dor.hengli.com.au, jdike@...ux.intel.com Cc: Xin Xiaohui <xiaohui.xin@...el.com> Subject: [PATCH v11 07/17] Modify netdev_alloc_page() to get external buffer From: Xin Xiaohui <xiaohui.xin@...el.com> Currently, it can get external buffers from mp device. Signed-off-by: Xin Xiaohui <xiaohui.xin@...el.com> Signed-off-by: Zhao Yu <yzhao81new@...il.com> Reviewed-by: Jeff Dike <jdike@...ux.intel.com> --- net/core/skbuff.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 117d82b..1a61e2b 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -269,11 +269,38 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, } EXPORT_SYMBOL(__netdev_alloc_skb); +struct page *netdev_alloc_ext_pages(struct net_device *dev, int npages) +{ + struct mpassthru_port *port; + struct skb_ext_page *ext_page = NULL; + + port = dev->mp_port; + if (!port) + goto out; + ext_page = port->ctor(port, NULL, npages); + if (ext_page) + return ext_page->page; +out: + return NULL; + +} +EXPORT_SYMBOL(netdev_alloc_ext_pages); + +struct page *netdev_alloc_ext_page(struct net_device *dev) +{ + return netdev_alloc_ext_pages(dev, 1); + +} +EXPORT_SYMBOL(netdev_alloc_ext_page); + struct page *__netdev_alloc_page(struct net_device *dev, gfp_t gfp_mask) { int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1; struct page *page; + if (dev_is_mpassthru(dev)) + return netdev_alloc_ext_page(dev); + page = alloc_pages_node(node, gfp_mask, 0); return page; } -- 1.7.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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