linux-kernel - Re: [PATCHv2 perf/core 1/2] tools lib bpf: Sync {tools,}/include/uapi/linux/bpf.h

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Date:   Thu, 17 Nov 2016 09:28:00 +0800
From:   "Wangnan (F)" <wangnan0@...wei.com>
To:     Joe Stringer <joe@....org>, <linux-kernel@...r.kernel.org>
CC:     <netdev@...r.kernel.org>, <ast@...com>, <daniel@...earbox.net>,
        <acme@...nel.org>
Subject: Re: [PATCHv2 perf/core 1/2] tools lib bpf: Sync
 {tools,}/include/uapi/linux/bpf.h



On 2016/11/17 1:43, Joe Stringer wrote:
> The tools version of this header is out of date; update it to the latest
> version from the kernel headers.
>
> Signed-off-by: Joe Stringer <joe@....org>
> ---
> v2: No change.
> ---
>   tools/include/uapi/linux/bpf.h | 51 ++++++++++++++++++++++++++++++++++++++++++
>   1 file changed, 51 insertions(+)

Acked-by: Wang Nan <wangnan0@...wei.com>

> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> index 9e5fc168c8a3..f09c70b97eca 100644
> --- a/tools/include/uapi/linux/bpf.h
> +++ b/tools/include/uapi/linux/bpf.h
> @@ -95,6 +95,7 @@ enum bpf_prog_type {
>   	BPF_PROG_TYPE_SCHED_ACT,
>   	BPF_PROG_TYPE_TRACEPOINT,
>   	BPF_PROG_TYPE_XDP,
> +	BPF_PROG_TYPE_PERF_EVENT,
>   };
>   
>   #define BPF_PSEUDO_MAP_FD	1
> @@ -375,6 +376,56 @@ enum bpf_func_id {
>   	 */
>   	BPF_FUNC_probe_write_user,
>   
> +	/**
> +	 * bpf_current_task_under_cgroup(map, index) - Check cgroup2 membership of current task
> +	 * @map: pointer to bpf_map in BPF_MAP_TYPE_CGROUP_ARRAY type
> +	 * @index: index of the cgroup in the bpf_map
> +	 * Return:
> +	 *   == 0 current failed the cgroup2 descendant test
> +	 *   == 1 current succeeded the cgroup2 descendant test
> +	 *    < 0 error
> +	 */
> +	BPF_FUNC_current_task_under_cgroup,
> +
> +	/**
> +	 * bpf_skb_change_tail(skb, len, flags)
> +	 * The helper will resize the skb to the given new size,
> +	 * to be used f.e. with control messages.
> +	 * @skb: pointer to skb
> +	 * @len: new skb length
> +	 * @flags: reserved
> +	 * Return: 0 on success or negative error
> +	 */
> +	BPF_FUNC_skb_change_tail,
> +
> +	/**
> +	 * bpf_skb_pull_data(skb, len)
> +	 * The helper will pull in non-linear data in case the
> +	 * skb is non-linear and not all of len are part of the
> +	 * linear section. Only needed for read/write with direct
> +	 * packet access.
> +	 * @skb: pointer to skb
> +	 * @len: len to make read/writeable
> +	 * Return: 0 on success or negative error
> +	 */
> +	BPF_FUNC_skb_pull_data,
> +
> +	/**
> +	 * bpf_csum_update(skb, csum)
> +	 * Adds csum into skb->csum in case of CHECKSUM_COMPLETE.
> +	 * @skb: pointer to skb
> +	 * @csum: csum to add
> +	 * Return: csum on success or negative error
> +	 */
> +	BPF_FUNC_csum_update,
> +
> +	/**
> +	 * bpf_set_hash_invalid(skb)
> +	 * Invalidate current skb>hash.
> +	 * @skb: pointer to skb
> +	 */
> +	BPF_FUNC_set_hash_invalid,
> +
>   	__BPF_FUNC_MAX_ID,
>   };
>