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authorFelix Fietkau <nbd@openwrt.org>2010-04-04 17:43:13 +0000
committerFelix Fietkau <nbd@openwrt.org>2010-04-04 17:43:13 +0000
commitddb677e13ded19544da207599bc36a6f6b2de98a (patch)
treea81c71527bc86a7a6c4e81afebf07934968d4550
parent1fc7da03066f4d88ee1773677e490ba74fc8e834 (diff)
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ixp4xx: add back the patch for avoiding dma bounce buffers for network buffers, which was lost on the kernel upgrade to 2.6.32. fixes ath9k and improves other drivers' performance on boards with >64M ram
SVN-Revision: 20708
-rw-r--r--target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch13
1 files changed, 13 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch b/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch
new file mode 100644
index 0000000000..21be8284e6
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch
@@ -0,0 +1,13 @@
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -264,6 +264,10 @@ 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);