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| author | Felix Fietkau <nbd@openwrt.org> | 2010-01-06 06:05:15 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2010-01-06 06:05:15 +0000 |
| commit | 9a12579f973af9db625ce51842d53ba4206a77b8 (patch) | |
| tree | 1f1ec62e239c32d4a54092a95d130ea1f7625677 /target | |
| parent | 165629fca5d88e97dd1822b40094890edacdc053 (diff) | |
| download | master-187ad058-9a12579f973af9db625ce51842d53ba4206a77b8.tar.gz master-187ad058-9a12579f973af9db625ce51842d53ba4206a77b8.tar.bz2 master-187ad058-9a12579f973af9db625ce51842d53ba4206a77b8.zip | |
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
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19051 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/ixp4xx/patches-2.6.30/600-dma_performance.patch | 13 |
1 files changed, 13 insertions, 0 deletions
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); |