From e5e3624fff9f359618564d53fccd2aea33856e8d Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 6 Jan 2010 06:05:15 +0000 Subject: ixp4xx: allocate all skbs using GFP_DMA this ensures that dma bounce buffers will not be used frequently when bridging or routing frames between ethernet and wifi. significantly improves ath9k performance and obsoletes an ath specific patch SVN-Revision: 19051 --- .../linux/ixp4xx/patches-2.6.30/600-dma_performance.patch | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 target/linux/ixp4xx/patches-2.6.30/600-dma_performance.patch (limited to 'target/linux/ixp4xx') diff --git a/target/linux/ixp4xx/patches-2.6.30/600-dma_performance.patch b/target/linux/ixp4xx/patches-2.6.30/600-dma_performance.patch new file mode 100644 index 0000000000..5aac26ee80 --- /dev/null +++ b/target/linux/ixp4xx/patches-2.6.30/600-dma_performance.patch @@ -0,0 +1,13 @@ +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -260,6 +260,10 @@ struct sk_buff *__alloc_skb(unsigned int + if (!skb) + goto out; + ++#ifdef CONFIG_ARCH_IXP4XX ++ gfp_mask |= GFP_DMA; ++#endif ++ + size = SKB_DATA_ALIGN(size); + data = kmalloc_node_track_caller(size + sizeof(struct skb_shared_info), + gfp_mask, node); -- cgit v1.2.3