netdev - Re: [PATCH bpf-next 5/6] bpf: btf: Update tools/include/uapi/linux/btf.h with BTF ID

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Date:   Tue, 8 May 2018 21:18:47 +0000
From:   Song Liu <songliubraving@...com>
To:     Martin Lau <kafai@...com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Kernel Team <Kernel-team@...com>
Subject: Re: [PATCH bpf-next 5/6] bpf: btf: Update
 tools/include/uapi/linux/btf.h with BTF ID



> On May 4, 2018, at 2:49 PM, Martin KaFai Lau <kafai@...com> wrote:
> 
> This patch sync the tools/include/uapi/linux/btf.h with
> the newly introduced BTF ID support.
> 
> Signed-off-by: Martin KaFai Lau <kafai@...com>
> Acked-by: Alexei Starovoitov <ast@...com>
> ---
> tools/include/uapi/linux/bpf.h | 11 +++++++++++
> 1 file changed, 11 insertions(+)
> 
> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> index 83a95ae388dd..fff51c187d1e 100644
> --- a/tools/include/uapi/linux/bpf.h
> +++ b/tools/include/uapi/linux/bpf.h
> @@ -96,6 +96,7 @@ enum bpf_cmd {
> 	BPF_PROG_QUERY,
> 	BPF_RAW_TRACEPOINT_OPEN,
> 	BPF_BTF_LOAD,
> +	BPF_BTF_GET_FD_BY_ID,
> };
> 
> enum bpf_map_type {
> @@ -343,6 +344,7 @@ union bpf_attr {
> 			__u32		start_id;
> 			__u32		prog_id;
> 			__u32		map_id;
> +			__u32		btf_id;
> 		};
> 		__u32		next_id;
> 		__u32		open_flags;
> @@ -2129,6 +2131,15 @@ struct bpf_map_info {
> 	__u32 ifindex;
> 	__u64 netns_dev;
> 	__u64 netns_ino;
> +	__u32 btf_id;
> +	__u32 btf_key_id;
> +	__u32 btf_value_id;
> +} __attribute__((aligned(8)));
> +
> +struct bpf_btf_info {
> +	__aligned_u64 btf;
> +	__u32 btf_size;
> +	__u32 id;
> } __attribute__((aligned(8)));
> 
> /* User bpf_sock_addr struct to access socket fields and sockaddr struct passed
> -- 
> 2.9.5
> 

Acked-by: Song Liu <songliubraving@...com>