ixp4xx: allocate all skbs using GFP_DMA this ensures that dma bounce buffers will...

SVN-Revision: 19051

diff --git a/package/mac80211/patches/500-ath_use_gfp_dma.patch b/package/mac80211/patches/500-ath_use_gfp_dma.patch
deleted file mode 100644 (file)
index 9390a2f..0000000
--- a/package/mac80211/patches/500-ath_use_gfp_dma.patch
+++ /dev/null
@@ -1,17 +0,0 @@
---- a/drivers/net/wireless/ath/main.c
-+++ b/drivers/net/wireless/ath/main.c
-@@ -31,6 +31,14 @@ struct sk_buff *ath_rxbuf_alloc(struct a
-       u32 off;
- 
-       /*
-+       * Enable GFP_DMA in order to avoid using DMA bounce buffers
-+       * on IXP4xx devices with more than 64M RAM
-+       */
-+#ifdef CONFIG_ARCH_IXP4XX
-+      gfp_mask |= GFP_DMA;
-+#endif
-+
-+      /*
-        * Cache-line-align.  This is important (for the
-        * 5210 at least) as not doing so causes bogus data
-        * in rx'd frames.

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 (file)
index 0000000..5aac26e
--- /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);