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authorDavid S. Miller2010-05-07 02:55:33 -0700
committerDavid S. Miller2010-05-07 02:55:33 -0700
commite0e33280fedcfa9dd70a54085c4d44d9d53b788f (patch)
treebbe5872fddbd7676fabea783a1fb2daf757620d9 /arch
parenta33fa66bcf365ffe5b79d1ae1d3582cc261ae56e (diff)
Revert "microblaze: Kill NET_SKB_PAD and NET_IP_ALIGN overrides."
This reverts commit 39e0786d3cf39c6d2f47b4818ae2da8b8ebc9ce2. On request from microblaze developers, they are going to handle this differently. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/include/asm/system.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
index b1e2f0710098..48c4f0335e3f 100644
--- a/arch/microblaze/include/asm/system.h
+++ b/arch/microblaze/include/asm/system.h
@@ -97,4 +97,14 @@ extern struct dentry *of_debugfs_root;
#define arch_align_stack(x) (x)
+/*
+ * MicroBlaze doesn't handle unaligned accesses in hardware.
+ *
+ * Based on this we force the IP header alignment in network drivers.
+ * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining
+ * cacheline alignment of buffers.
+ */
+#define NET_IP_ALIGN 2
+#define NET_SKB_PAD L1_CACHE_BYTES
+
#endif /* _ASM_MICROBLAZE_SYSTEM_H */