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| author | David S. Miller <davem@davemloft.net> | 2010-05-07 11:55:33 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-07 11:55:33 +0200 |
| commit | e0e33280fedcfa9dd70a54085c4d44d9d53b788f (patch) | |
| tree | bbe5872fddbd7676fabea783a1fb2daf757620d9 /arch/microblaze/include/asm/system.h | |
| parent | bnx2: Add prefetches to rx path. (diff) | |
| download | linux-e0e33280fedcfa9dd70a54085c4d44d9d53b788f.tar.xz linux-e0e33280fedcfa9dd70a54085c4d44d9d53b788f.zip | |
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/microblaze/include/asm/system.h')
| -rw-r--r-- | arch/microblaze/include/asm/system.h | 10 |
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 */ |