From: Alexei Starovoitov <ast@plumgrid•com>
To: Daniel Borkmann <daniel@iogearbox•net>, stephen@networkplumber•org
Cc: jhs@mojatatu•com, jiri@resnulli•us, netdev@vger•kernel.org
Subject: Re: [PATCH iproute2 -next 2/2] tc: add eBPF support to f_bpf
Date: Mon, 16 Mar 2015 10:45:35 -0700 [thread overview]
Message-ID: <550716BF.9030607@plumgrid.com> (raw)
In-Reply-To: <f7e40a542ad415742037bab62ed2348f07ba4c94.1426525312.git.daniel@iogearbox.net>
On 3/16/15 10:10 AM, Daniel Borkmann wrote:
> +
> +/* ELF section names, etc (ABI) */
> +#define ELF_SECTION_LICENSE "license"
> +#define ELF_SECTION_MAPS "maps"
> +#define ELF_SECTION_CLASSIFIER "classifier"
> +#define ELF_SECTION_ACTION "action"
> +
> +#define ELF_MAX_MAPS 64
> +#define ELF_MAX_LICENSE_LEN 128
> +
> +/* ELF map definition (ABI) */
> +struct bpf_elf_map {
> + __u32 type;
> + __u32 size_key;
> + __u32 size_value;
> + __u32 max_elem;
> +};
I think people might freak out that the above section names and
the struct are a kernel ABI. It's obviously not.
Would be good to say that this is a present convention between
C program that describes tc classifier and tc elf reader
and it can change in the future.
next prev parent reply other threads:[~2015-03-16 17:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-16 17:10 [PATCH iproute2 -next 0/2] f_bpf update Daniel Borkmann
2015-03-16 17:10 ` [PATCH iproute2 -next 1/2] misc: header rebase, add bpf.h Daniel Borkmann
2015-03-16 17:10 ` [PATCH iproute2 -next 2/2] tc: add eBPF support to f_bpf Daniel Borkmann
2015-03-16 17:45 ` Alexei Starovoitov [this message]
2015-03-16 17:49 ` Daniel Borkmann
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