From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Stanislav Fomichev <sdf@google.com>
Cc: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, martin.lau@linux.dev, song@kernel.org,
yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org,
haoluo@google.com, jolsa@kernel.org,
David Ahern <dsahern@gmail.com>, Jakub Kicinski <kuba@kernel.org>,
Willem de Bruijn <willemb@google.com>,
Jesper Dangaard Brouer <brouer@redhat.com>,
Anatoly Burakov <anatoly.burakov@intel.com>,
Alexander Lobakin <alexandr.lobakin@intel.com>,
Magnus Karlsson <magnus.karlsson@gmail.com>,
Maryam Tahhan <mtahhan@redhat.com>,
xdp-hints@xdp-project.net, netdev@vger.kernel.org
Subject: [xdp-hints] Re: [PATCH bpf-next v3 03/12] bpf: XDP metadata RX kfuncs
Date: Tue, 6 Dec 2022 20:29:04 -0800 [thread overview]
Message-ID: <Y5AWkAYVEBqi5jy3@macbook-pro-6.dhcp.thefacebook.com> (raw)
In-Reply-To: <20221206024554.3826186-4-sdf@google.com>
On Mon, Dec 05, 2022 at 06:45:45PM -0800, Stanislav Fomichev wrote:
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index fc4e313a4d2e..00951a59ee26 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -15323,6 +15323,24 @@ static int fixup_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn,
> return -EINVAL;
> }
>
> + *cnt = 0;
> +
> + if (resolve_prog_type(env->prog) == BPF_PROG_TYPE_XDP) {
> + if (bpf_prog_is_offloaded(env->prog->aux)) {
> + verbose(env, "no metadata kfuncs offload\n");
> + return -EINVAL;
> + }
If I'm reading this correctly than this error will trigger
for any XDP prog trying to use a kfunc?
I was hoping that BPF CI can prove my point, but it failed to
build your newly added xdp_hw_metadata.c test.
next prev parent reply other threads:[~2022-12-07 4:29 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-06 2:45 [xdp-hints] [PATCH bpf-next v3 00/12] xdp: hints via kfuncs Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 01/12] bpf: Document XDP RX metadata Stanislav Fomichev
2022-12-08 4:25 ` [xdp-hints] " Jakub Kicinski
2022-12-08 19:06 ` Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 02/12] bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded Stanislav Fomichev
2022-12-08 4:26 ` [xdp-hints] " Jakub Kicinski
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 03/12] bpf: XDP metadata RX kfuncs Stanislav Fomichev
2022-12-07 4:29 ` Alexei Starovoitov [this message]
2022-12-07 4:52 ` [xdp-hints] " Stanislav Fomichev
2022-12-07 7:23 ` Martin KaFai Lau
2022-12-07 18:05 ` Stanislav Fomichev
2022-12-08 2:47 ` Martin KaFai Lau
2022-12-08 19:07 ` Stanislav Fomichev
2022-12-08 22:53 ` Martin KaFai Lau
2022-12-08 23:45 ` Stanislav Fomichev
2022-12-08 5:00 ` Jakub Kicinski
2022-12-08 19:07 ` Stanislav Fomichev
2022-12-09 1:30 ` Jakub Kicinski
2022-12-09 2:57 ` Stanislav Fomichev
2022-12-08 22:39 ` Toke Høiland-Jørgensen
2022-12-08 23:46 ` Stanislav Fomichev
2022-12-09 0:07 ` Toke Høiland-Jørgensen
2022-12-09 2:57 ` Stanislav Fomichev
2022-12-10 0:42 ` Martin KaFai Lau
2022-12-10 1:12 ` Martin KaFai Lau
2022-12-09 11:10 ` Jesper Dangaard Brouer
2022-12-09 17:47 ` Stanislav Fomichev
2022-12-11 11:09 ` Jesper Dangaard Brouer
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 04/12] veth: Introduce veth_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 05/12] veth: Support RX XDP metadata Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 06/12] selftests/bpf: Verify xdp_metadata xdp->af_xdp path Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 07/12] mlx4: Introduce mlx4_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-08 6:11 ` [xdp-hints] " Tariq Toukan
2022-12-08 19:07 ` Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 08/12] mxl4: Support RX XDP metadata Stanislav Fomichev
2022-12-08 6:09 ` [xdp-hints] " Tariq Toukan
2022-12-08 19:07 ` Stanislav Fomichev
2022-12-08 20:23 ` Tariq Toukan
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 09/12] xsk: Add cb area to struct xdp_buff_xsk Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 10/12] mlx5: Introduce mlx5_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 11/12] mlx5: Support RX XDP metadata Stanislav Fomichev
2022-12-08 22:59 ` [xdp-hints] " Toke Høiland-Jørgensen
2022-12-08 23:45 ` Stanislav Fomichev
2022-12-09 0:02 ` Toke Høiland-Jørgensen
2022-12-09 0:07 ` Alexei Starovoitov
2022-12-09 0:29 ` Toke Høiland-Jørgensen
2022-12-09 0:32 ` Alexei Starovoitov
2022-12-09 0:53 ` Toke Høiland-Jørgensen
2022-12-09 2:57 ` Stanislav Fomichev
2022-12-09 5:24 ` Saeed Mahameed
2022-12-09 12:59 ` Jesper Dangaard Brouer
2022-12-09 14:37 ` Toke Høiland-Jørgensen
2022-12-09 15:19 ` Dave Taht
2022-12-09 14:42 ` Toke Høiland-Jørgensen
2022-12-09 16:45 ` Jakub Kicinski
2022-12-09 17:46 ` Stanislav Fomichev
2022-12-09 22:13 ` Jakub Kicinski
2022-12-06 2:45 ` [xdp-hints] [PATCH bpf-next v3 12/12] selftests/bpf: Simple program to dump XDP RX metadata Stanislav Fomichev
2022-12-08 22:28 ` [xdp-hints] Re: [PATCH bpf-next v3 00/12] xdp: hints via kfuncs Toke Høiland-Jørgensen
2022-12-08 23:47 ` Stanislav Fomichev
2022-12-09 0:14 ` Toke Høiland-Jørgensen
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