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From: David Ahern <dsahern@gmail.com>
To: "Jesper Dangaard Brouer" <brouer@redhat.com>,
	"Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	Hangbin Liu <liuhangbin@gmail.com>, bpf <bpf@vger.kernel.org>,
	Network Development <netdev@vger.kernel.org>,
	Jiri Benc <jbenc@redhat.com>,
	Eelco Chaudron <echaudro@redhat.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
	Andrii Nakryiko <andrii.nakryiko@gmail.com>
Subject: Re: [PATCHv11 bpf-next 2/5] xdp: add a new helper for dev map multicast support
Date: Thu, 10 Sep 2020 12:35:33 -0600	[thread overview]
Message-ID: <47566856-75e2-8f2b-4347-f03a7cb5493b@gmail.com> (raw)
In-Reply-To: <20200910195014.13ff24e4@carbon>

On 9/10/20 11:50 AM, Jesper Dangaard Brouer wrote:
> Maybe we should change the devmap-prog approach, and run this on the
> xdp_frame's (in bq_xmit_all() to be precise) .  Hangbin's patchset
> clearly shows that we need this "layer" between running the xdp_prog and
> the devmap-prog. 

I would prefer to leave it in dev_map_enqueue.

The main premise at the moment is that the program attached to the
DEVMAP entry is an ACL specific to that dev. If the program is going to
drop the packet, then no sense queueing it.

I also expect a follow on feature will be useful to allow the DEVMAP
program to do another REDIRECT (e.g., potentially after modifying). It
is not handled at the moment as it needs thought - e.g., limiting the
number of iterative redirects. If such a feature does happen, then no
sense queueing it to the current device.

  reply	other threads:[~2020-09-10 18:38 UTC|newest]

Thread overview: 219+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15  8:54 [RFC PATCH bpf-next 0/2] xdp: add " Hangbin Liu
2020-04-15  8:54 ` [RFC PATCH bpf-next 1/2] " Hangbin Liu
2020-04-20  9:52   ` Hangbin Liu
2020-04-15  8:54 ` [RFC PATCH bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-04-24  8:56 ` [RFC PATCHv2 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-04-24  8:56   ` [RFC PATCHv2 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-04-24 14:19     ` Lorenzo Bianconi
2020-04-28 11:09       ` Eelco Chaudron
2020-05-06  9:35       ` Hangbin Liu
2020-04-24 14:34     ` Toke Høiland-Jørgensen
2020-05-06  9:14       ` Hangbin Liu
2020-05-06 10:00         ` Toke Høiland-Jørgensen
2020-05-08  8:53           ` Hangbin Liu
2020-05-08 14:58             ` Toke Høiland-Jørgensen
2020-05-18  8:45       ` Hangbin Liu
2020-05-19 10:15         ` Jesper Dangaard Brouer
2020-05-20  1:24           ` Hangbin Liu
2020-04-24  8:56   ` [RFC PATCHv2 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-04-24 14:21     ` Lorenzo Bianconi
2020-05-23  6:05 ` [PATCHv3 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-05-23  6:05   ` [PATCHv3 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-05-26  7:34     ` kbuild test robot
2020-05-23  6:05   ` [PATCHv3 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-05-26 14:05 ` [PATCHv4 bpf-next 0/2] xdp: add dev map multicast support Hangbin Liu
2020-05-26 14:05   ` [PATCHv4 bpf-next 1/2] xdp: add a new helper for " Hangbin Liu
2020-05-27 10:29     ` Toke Høiland-Jørgensen
2020-06-10 10:18     ` Jesper Dangaard Brouer
2020-06-12  8:54       ` Hangbin Liu
2020-06-16  8:55         ` Jesper Dangaard Brouer
2020-06-16 10:11           ` Hangbin Liu
2020-06-16 14:38             ` Jesper Dangaard Brouer
2020-06-10 10:21     ` Jesper Dangaard Brouer
2020-06-10 10:29       ` Toke Høiland-Jørgensen
2020-06-16  9:04         ` Jesper Dangaard Brouer
2020-05-26 14:05   ` [PATCHv4 bpf-next 2/2] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-05-27 10:21   ` [PATCHv4 bpf-next 0/2] xdp: add dev map multicast support Toke Høiland-Jørgensen
2020-05-27 10:32     ` Eelco Chaudron
2020-05-27 12:38     ` Hangbin Liu
2020-05-27 15:04       ` Toke Høiland-Jørgensen
2020-06-16  9:09         ` Jesper Dangaard Brouer
2020-06-16  9:47           ` Hangbin Liu
2020-06-03  2:40     ` Hangbin Liu
2020-06-03 11:05       ` Toke Høiland-Jørgensen
2020-06-04  4:09         ` Hangbin Liu
2020-06-04  9:44           ` Toke Høiland-Jørgensen
2020-06-04 12:12             ` Hangbin Liu
2020-06-04 12:37               ` Toke Høiland-Jørgensen
2020-06-04 14:41                 ` Hangbin Liu
2020-06-04 16:02                   ` Toke Høiland-Jørgensen
2020-06-05  6:26                     ` Hangbin Liu
2020-06-08 15:32                       ` Toke Høiland-Jørgensen
2020-06-09  3:03                         ` Hangbin Liu
2020-06-09 20:31                           ` Toke Høiland-Jørgensen
2020-06-10  2:35                             ` Hangbin Liu
2020-06-10 10:03                               ` Jesper Dangaard Brouer
2020-07-01  4:19   ` [PATCHv5 bpf-next 0/3] xdp: add a new helper for " Hangbin Liu
2020-07-01  4:19     ` [PATCHv5 bpf-next 1/3] " Hangbin Liu
2020-07-01  5:09       ` Andrii Nakryiko
2020-07-01  6:51         ` Hangbin Liu
2020-07-01 18:33       ` kernel test robot
2020-07-01  4:19     ` [PATCHv5 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-01  4:19     ` [PATCHv5 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-09  1:30     ` [PATCHv6 bpf-next 0/3] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-07-09  1:30       ` [PATCHv6 bpf-next 1/3] " Hangbin Liu
2020-07-09 16:33         ` David Ahern
2020-07-10  6:55           ` Hangbin Liu
2020-07-10 13:46             ` David Ahern
2020-07-11  0:26               ` Hangbin Liu
2020-07-11 16:09                 ` David Ahern
2020-07-09  1:30       ` [PATCHv6 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-09 22:40         ` Daniel Borkmann
2020-07-10  6:41           ` Hangbin Liu
2020-07-10 14:32             ` Daniel Borkmann
2020-07-11  0:21               ` Hangbin Liu
2020-07-09  1:30       ` [PATCHv6 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-09 22:37       ` [PATCHv6 bpf-next 0/3] xdp: add a new helper for dev map multicast support Daniel Borkmann
2020-07-10  7:36         ` Hangbin Liu
2020-07-10 15:02           ` Daniel Borkmann
2020-07-10 16:52             ` David Ahern
2020-07-14  6:32       ` [PATCHv7 " Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 1/3] " Hangbin Liu
2020-07-14 21:52           ` Toke Høiland-Jørgensen
2020-07-15 12:25             ` Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-14  6:32         ` [PATCHv7 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-07-14 12:29         ` [PATCHv7 bpf-next 0/3] xdp: add a new helper for dev map multicast support Toke Høiland-Jørgensen
2020-07-14 17:12           ` David Ahern
2020-07-14 21:53             ` Toke Høiland-Jørgensen
2020-07-15 12:31               ` Hangbin Liu
2020-07-15  3:45             ` Hangbin Liu
2020-07-15 13:08         ` [PATCHv8 " Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 1/3] " Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 2/3] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-07-15 13:08           ` [PATCHv8 bpf-next 3/3] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-08-26 13:19           ` [PATCHv9 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-08-26 13:19             ` [PATCHv9 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-08-28 21:56               ` Daniel Borkmann
2020-09-03  9:15                 ` Hangbin Liu
2020-08-26 13:19             ` [PATCHv9 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-08-28 22:05               ` Daniel Borkmann
2020-08-26 13:20             ` [PATCHv9 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-08-26 13:20             ` [PATCHv9 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-08-26 13:20             ` [PATCHv9 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-03 10:26             ` [PATCHv10 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-03 10:26               ` [PATCHv10 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-04 14:26                 ` Daniel Borkmann
2020-09-03 10:26               ` [PATCHv10 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-04 14:22                 ` Daniel Borkmann
2020-09-03 10:26               ` [PATCHv10 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-09-03 10:27               ` [PATCHv10 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-09-03 10:27               ` [PATCHv10 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-07  8:27               ` [PATCHv11 bpf-next 0/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 1/5] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 2/5] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-09-09 21:52                   ` Alexei Starovoitov
2020-09-10  2:35                     ` Hangbin Liu
2020-09-10  3:30                       ` David Ahern
2020-09-10  5:35                         ` Alexei Starovoitov
2020-09-10  9:44                           ` Toke Høiland-Jørgensen
2020-09-10 15:39                             ` Alexei Starovoitov
2020-09-10 17:50                             ` Jesper Dangaard Brouer
2020-09-10 18:35                               ` David Ahern [this message]
2020-09-11  7:58                                 ` Jesper Dangaard Brouer
2020-09-15 16:12                                   ` David Ahern
2020-09-07  8:27                 ` [PATCHv11 bpf-next 3/5] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 4/5] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-09-07  8:27                 ` [PATCHv11 bpf-next 5/5] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                 ` [PATCHv12 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2020-12-17 16:07                     ` David Ahern
2020-12-18  9:43                       ` Hangbin Liu
2020-12-21  8:38                       ` Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-16 14:30                   ` [PATCHv12 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2020-12-21 12:34                   ` [PATCHv13 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2020-12-21 12:35                     ` [PATCHv13 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-14 14:23                     ` [PATCHv14 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-17 22:57                         ` John Fastabend
2021-01-18 10:07                           ` Hangbin Liu
2021-01-21 14:33                             ` Jesper Dangaard Brouer
2021-01-14 14:23                       ` [PATCHv14 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-18  0:10                         ` John Fastabend
2021-01-18  8:44                           ` Hangbin Liu
2021-01-18 10:47                             ` Toke Høiland-Jørgensen
2021-01-18 15:14                               ` John Fastabend
2021-01-14 14:23                       ` [PATCHv14 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-14 14:23                       ` [PATCHv14 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-20  2:25                       ` [PATCHv15 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-20 22:42                           ` Maciej Fijalkowski
2021-01-21  3:54                             ` Hangbin Liu
2021-01-21 13:35                               ` Maciej Fijalkowski
2021-01-20  2:25                         ` [PATCHv15 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-20  2:25                         ` [PATCHv15 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-22  7:46                         ` [PATCHv16 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-22 10:50                             ` Maciej Fijalkowski
2021-01-22 13:38                               ` Toke Høiland-Jørgensen
2021-01-25  3:30                                 ` Hangbin Liu
2021-01-25 11:21                                   ` Toke Høiland-Jørgensen
2021-01-25 12:29                                     ` Maciej Fijalkowski
2021-01-22  7:46                           ` [PATCHv16 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-25 12:27                             ` Maciej Fijalkowski
2021-01-26  1:17                               ` Hangbin Liu
2021-01-27 22:13                             ` John Fastabend
2021-01-22  7:46                           ` [PATCHv16 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-22  7:46                           ` [PATCHv16 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-22 13:43                           ` [PATCHv16 bpf-next 0/6] xdp: add a new helper for dev map multicast support Toke Høiland-Jørgensen
2021-01-25 12:45                           ` [PATCHv17 " Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-01-27  7:37                               ` John Fastabend
2021-01-27  9:41                                 ` Toke Høiland-Jørgensen
2021-01-27 12:20                                   ` Maciej Fijalkowski
2021-01-27 15:00                                     ` Jesper Dangaard Brouer
2021-01-27 15:52                                       ` John Fastabend
2021-01-27 16:05                                         ` Toke Høiland-Jørgensen
2021-01-27 15:58                               ` Jesper Dangaard Brouer
2021-01-25 12:45                             ` [PATCHv17 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-27 21:50                               ` John Fastabend
2021-01-25 12:45                             ` [PATCHv17 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-01-25 12:45                             ` [PATCHv17 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-01-27 22:24                               ` John Fastabend
2021-01-28  3:53                                 ` Hangbin Liu
2021-01-28 23:14                                   ` John Fastabend
2021-01-25 12:45                             ` [PATCHv17 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu
2021-01-28 23:37                               ` John Fastabend
2021-01-29  1:46                                 ` Hangbin Liu
2021-02-04  0:14                             ` [PATCHv17 bpf-next 0/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-02-04  2:53                               ` John Fastabend
2021-02-04  3:12                                 ` Hangbin Liu
2021-02-04 11:00                                   ` Toke Høiland-Jørgensen
2021-02-04 12:09                                     ` Maciej Fijalkowski
2021-02-04 13:33                                       ` Hangbin Liu
2021-02-04 17:03                                     ` Jakub Kicinski
2021-02-05  3:07                                       ` Hangbin Liu
2021-02-04 14:03                             ` [PATCHv18 " Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 1/6] bpf: run devmap xdp_prog on flush instead of bulk enqueue Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 3/6] xdp: add a new helper for dev map multicast support Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 4/6] sample/bpf: add xdp_redirect_map_multicast test Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 5/6] selftests/bpf: Add verifier tests for bpf arg ARG_CONST_MAP_PTR_OR_NULL Hangbin Liu
2021-02-04 14:03                               ` [PATCHv18 bpf-next 6/6] selftests/bpf: add xdp_redirect_multi test Hangbin Liu

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