From: David Miller <davem@davemloft.net>
To: mgherzan@gmail.com
Cc: linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
linux@arm.linux.org.uk
Subject: Re: [PATCH v3] ARM: net: JIT compiler for packet filters
Date: Tue, 20 Dec 2011 13:55:26 -0500 (EST) [thread overview]
Message-ID: <20111220.135526.82432216865290827.davem@davemloft.net> (raw)
In-Reply-To: <1324404263-913-1-git-send-email-mgherzan@gmail.com>
From: Mircea Gherzan <mgherzan@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@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@davemloft.net>
next prev parent reply other threads:[~2011-12-20 18:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-20 18:04 [PATCH v3] ARM: net: JIT compiler for packet filters Mircea Gherzan
2011-12-20 18:55 ` David Miller [this message]
2011-12-28 15:51 ` Mircea Gherzan
2011-12-28 18:41 ` David Miller
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