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From: Jakub Kicinski <kuba@kernel.org>
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>,
	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: Re: [PATCH bpf-next v3 03/12] bpf: XDP metadata RX kfuncs
Date: Thu, 8 Dec 2022 17:30:53 -0800	[thread overview]
Message-ID: <20221208173053.1145a8cb@kernel.org> (raw)
In-Reply-To: <CAKH8qBtAQe=b1BLR5RKu7mBynQf0arp4G9+DtvcWVNKNK_27vA@mail.gmail.com>

On Thu, 8 Dec 2022 11:07:43 -0800 Stanislav Fomichev wrote:
> > >       bpf_free_used_maps(aux);
> > >       bpf_free_used_btfs(aux);
> > > -     if (bpf_prog_is_offloaded(aux))
> > > +     if (bpf_prog_is_dev_bound(aux))
> > >               bpf_prog_offload_destroy(aux->prog);  
> >
> > This also looks a touch like a mix of terms (condition vs function
> > called).  
> 
> Here, not sure, open to suggestions. These
> bpf_prog_offload_init/bpf_prog_offload_destroy are generic enough
> (now) that I'm calling them for both dev_bound/offloaded.
> 
> The following paths trigger for both offloaded/dev_bound cases:
> 
> if (bpf_prog_is_dev_bound()) bpf_prog_offload_init();
> if (bpf_prog_is_dev_bound()) bpf_prog_offload_destroy();
> 
> Do you think it's worth it having completely separate
> dev_bound/offloaded paths? Or, alternatively, can rename to
> bpf_prog_dev_bound_{init,destroy} but still handle both cases?

Any offload should be bound, right? So I think functions which handle
both can use the bound naming scheme, only the offload-specific ones 
should explicitly use offload?

  reply	other threads:[~2022-12-09  1:31 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-06  2:45 [PATCH bpf-next v3 00/12] xdp: hints via kfuncs Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 01/12] bpf: Document XDP RX metadata Stanislav Fomichev
2022-12-08  4:25   ` Jakub Kicinski
2022-12-08 19:06     ` Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 02/12] bpf: Rename bpf_{prog,map}_is_dev_bound to is_offloaded Stanislav Fomichev
2022-12-08  4:26   ` Jakub Kicinski
2022-12-06  2:45 ` [PATCH bpf-next v3 03/12] bpf: XDP metadata RX kfuncs Stanislav Fomichev
2022-12-07  4:29   ` Alexei Starovoitov
2022-12-07  4:52     ` 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 [this message]
2022-12-09  2:57         ` Stanislav Fomichev
2022-12-08 22:39   ` [xdp-hints] " Toke Høiland-Jørgensen
2022-12-08 23:46     ` Stanislav Fomichev
2022-12-09  0:07       ` [xdp-hints] " 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 ` [PATCH bpf-next v3 04/12] veth: Introduce veth_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 05/12] veth: Support RX XDP metadata Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 06/12] selftests/bpf: Verify xdp_metadata xdp->af_xdp path Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 07/12] mlx4: Introduce mlx4_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-08  6:11   ` Tariq Toukan
2022-12-08 19:07     ` Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 08/12] mxl4: Support RX XDP metadata Stanislav Fomichev
2022-12-08  6:09   ` Tariq Toukan
2022-12-08 19:07     ` Stanislav Fomichev
2022-12-08 20:23       ` Tariq Toukan
2022-12-06  2:45 ` [PATCH bpf-next v3 09/12] xsk: Add cb area to struct xdp_buff_xsk Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 10/12] mlx5: Introduce mlx5_xdp_buff wrapper for xdp_buff Stanislav Fomichev
2022-12-06  2:45 ` [PATCH bpf-next v3 11/12] mlx5: Support RX XDP metadata Stanislav Fomichev
2022-12-08 22:59   ` Toke Høiland-Jørgensen
2022-12-08 23:45     ` Stanislav Fomichev
2022-12-09  0:02       ` [xdp-hints] " 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 ` [PATCH bpf-next v3 12/12] selftests/bpf: Simple program to dump XDP RX metadata Stanislav Fomichev
2022-12-08 22:28 ` [xdp-hints] [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     ` [xdp-hints] " Toke Høiland-Jørgensen

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