[PATCH v3] ARM: net: JIT compiler for packet filters
davem at davemloft.net
Tue Dec 20 13:55:26 EST 2011
From: Mircea Gherzan <mgherzan at gmail.com>
Date: Tue, 20 Dec 2011 19:04:23 +0100
> Based of Matt Evans's PPC64 implementation.
> The compiler generates ARM instructions but interworking is
> supported for Thumb2 kernels.
> Supports both little and big endian. Unaligned loads are emitted
> for ARMv6+. Not all the BPF opcodes that deal with ancillary data
> are supported. The scratch memory of the filter lives on the stack.
> Hardware integer division is used if it is available.
> Enabled in the same way as for x86-64 and PPC64:
> echo 1 > /proc/sys/net/core/bpf_jit_enable
> A value greater than 1 enables opcode output.
> Signed-off-by: Mircea Gherzan <mgherzan at gmail.com>
I'm happy with this going in via the ARM tree once all the details
are worked out:
Acked-by: David S. Miller <davem at davemloft.net>
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