From: Marek Majtyka <alardam@gmail.com>
To: "Saeed Mahameed" <saeed@kernel.org>,
"David Ahern" <dsahern@gmail.com>,
"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"Jesper Dangaard Brouer" <jbrouer@redhat.com>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
"Maciej Fijalkowski" <maciejromanfijalkowski@gmail.com>
Cc: "Björn Töpel" <bjorn.topel@intel.com>,
"Andrii Nakryiko" <andrii.nakryiko@gmail.com>,
"Jonathan Lemon" <jonathan.lemon@gmail.com>,
"Alexei Starovoitov" <ast@kernel.org>,
"Network Development" <netdev@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
hawk@kernel.org, bpf <bpf@vger.kernel.org>,
intel-wired-lan <intel-wired-lan@lists.osuosl.org>,
"Jakub Kicinski" <kuba@kernel.org>,
"Karlsson, Magnus" <magnus.karlsson@intel.com>,
jeffrey.t.kirsher@intel.com
Subject: Re: [PATCH v2 bpf 1/5] net: ethtool: add xdp properties flag set
Date: Tue, 5 Jan 2021 12:56:30 +0100 [thread overview]
Message-ID: <CAAOQfrHN1-oHmbOksDv-BKWv4gDF2zHZ5dTew6R_QTh6s_1abg@mail.gmail.com> (raw)
In-Reply-To: <6f8c23d4ac60525830399754b4891c12943b63ac.camel@kernel.org>
I would like to thank you for your time, comments, nitpicking as well
as encouraging.
One thing needs clarification I think, that is, that those flags
describe driver static feature sets - which are read-only. They have
nothing in common with driver runtime configuration change yet.
Runtime change of this state can be added but it needs a new variable
and it can be done later on if someone needs it.
Obviously, it is not possible to make everybody happy, especially with
XDP_BASE flags set. To be honest, this XDP_BASE definition is a
syntactic sugar for me and I can live without it. We can either remove
it completely, from
which IMO we all and other developers will suffer later on, or maybe
we can agree on these two helper set of flags: XDP_BASE (TX, ABORTED,
PASS, DROP) and XDP_LIMITED_BASE(ABORTED,PASS_DROP).
What do you think?
I am also going to add a new XDP_REDIRECT_TARGET flag and retrieving
XDP flags over rtnelink interface.
I also think that for completeness, ethtool implementation should be
kept together with rtnelink part in order to cover both ip and
ethtool tools. Do I have your approval or disagreement? Please let me know.
Both AF_XDP_ZEROCOPY and XDP_SOCK_ZEROCOPY are good to me. I will pick
the one XDP_SOCK_ZEROCOPY unless there are protests.
I don't think that HEADROOM parameter should be passed via the flags.
It is by nature a number and an attempt to quantize with flags seems
to be an unnatural limitation for the future.
Thanks
Marek
next prev parent reply other threads:[~2021-01-05 11:57 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-04 10:28 [PATCH v2 bpf 0/5] New netdev feature flags for XDP alardam
2020-12-04 10:28 ` [PATCH v2 bpf 1/5] net: ethtool: add xdp properties flag set alardam
2020-12-04 12:18 ` Toke Høiland-Jørgensen
2020-12-04 12:46 ` Maciej Fijalkowski
2020-12-04 15:21 ` Daniel Borkmann
2020-12-04 17:20 ` Toke Høiland-Jørgensen
2020-12-04 22:19 ` Daniel Borkmann
2020-12-07 11:54 ` Jesper Dangaard Brouer
2020-12-07 12:08 ` Toke Høiland-Jørgensen
2020-12-07 12:03 ` Toke Høiland-Jørgensen
2020-12-07 12:54 ` Jesper Dangaard Brouer
2020-12-07 20:52 ` John Fastabend
2020-12-07 22:38 ` Saeed Mahameed
2020-12-07 23:07 ` Maciej Fijalkowski
2020-12-09 6:03 ` John Fastabend
2020-12-09 9:54 ` Maciej Fijalkowski
2020-12-09 11:52 ` Jesper Dangaard Brouer
2020-12-09 15:41 ` David Ahern
2020-12-09 17:15 ` Saeed Mahameed
2020-12-10 3:34 ` David Ahern
2020-12-10 6:48 ` Saeed Mahameed
2020-12-10 15:30 ` David Ahern
2020-12-10 18:58 ` Saeed Mahameed
2021-01-05 11:56 ` Marek Majtyka [this message]
2021-02-01 16:16 ` Toke Høiland-Jørgensen
2021-02-02 11:26 ` Marek Majtyka
2021-02-02 12:05 ` Toke Høiland-Jørgensen
2021-02-02 19:34 ` Jakub Kicinski
2021-02-03 12:50 ` Marek Majtyka
2021-02-03 17:02 ` Jakub Kicinski
2021-02-10 10:53 ` Toke Høiland-Jørgensen
2021-02-10 18:31 ` Jakub Kicinski
2021-02-10 22:52 ` Toke Høiland-Jørgensen
2021-02-12 1:26 ` Jakub Kicinski
2021-02-12 2:05 ` Alexei Starovoitov
2021-02-12 7:02 ` Marek Majtyka
2021-02-16 14:30 ` Toke Høiland-Jørgensen
2020-12-09 15:44 ` David Ahern
2020-12-10 13:32 ` Explaining XDP redirect bulk size design (Was: [PATCH v2 bpf 1/5] net: ethtool: add xdp properties flag set) Jesper Dangaard Brouer
2020-12-10 14:14 ` [Intel-wired-lan] " Magnus Karlsson
2020-12-10 17:30 ` Jesper Dangaard Brouer
2020-12-10 19:20 ` Saeed Mahameed
2020-12-08 1:01 ` [PATCH v2 bpf 1/5] net: ethtool: add xdp properties flag set David Ahern
2020-12-08 8:28 ` Jesper Dangaard Brouer
2020-12-08 11:58 ` Toke Høiland-Jørgensen
2020-12-09 5:50 ` John Fastabend
2020-12-09 10:26 ` Toke Høiland-Jørgensen
2020-12-08 9:00 ` Jesper Dangaard Brouer
2020-12-08 9:42 ` Daniel Borkmann
2020-12-04 12:57 ` Maciej Fijalkowski
2020-12-04 10:28 ` [PATCH v2 bpf 2/5] drivers/net: turn XDP properties on alardam
2020-12-04 12:19 ` Toke Høiland-Jørgensen
2020-12-09 19:05 ` [Intel-wired-lan] " kernel test robot
2020-12-04 10:28 ` [PATCH v2 bpf 3/5] xsk: add usage of xdp properties flags alardam
2020-12-04 10:29 ` [PATCH v2 bpf 4/5] xsk: add check for full support of XDP in bind alardam
2020-12-04 10:29 ` [PATCH v2 bpf 5/5] ethtool: provide xdp info with XDP_PROPERTIES_GET alardam
2020-12-04 17:20 ` [PATCH v2 bpf 0/5] New netdev feature flags for XDP Jakub Kicinski
2020-12-04 17:26 ` Toke Høiland-Jørgensen
2020-12-04 19:22 ` Jakub Kicinski
2020-12-07 12:04 ` Toke Høiland-Jørgensen
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