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From: Jesper Dangaard Brouer <hawk@kernel.org>
To: Song Yoong Siang <yoong.siang.song@intel.com>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Jonathan Corbet <corbet@lwn.net>, Bjorn Topel <bjorn@kernel.org>,
	Magnus Karlsson <magnus.karlsson@intel.com>,
	Maciej Fijalkowski <maciej.fijalkowski@intel.com>,
	Jonathan Lemon <jonathan.lemon@gmail.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	John Fastabend <john.fastabend@gmail.com>,
	Stanislav Fomichev <sdf@google.com>,
	Lorenzo Bianconi <lorenzo@kernel.org>,
	Tariq Toukan <tariqt@nvidia.com>,
	Willem de Bruijn <willemb@google.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Andrii Nakryiko <andrii@kernel.org>,
	Mykola Lysenko <mykolal@fb.com>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	KP Singh <kpsingh@kernel.org>, Hao Luo <haoluo@google.com>,
	Jiri Olsa <jolsa@kernel.org>, Shuah Khan <shuah@kernel.org>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-doc@vger.kernel.org, bpf@vger.kernel.org,
	xdp-hints@xdp-project.net,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org
Subject: [xdp-hints] Re: [PATCH bpf-next v2 0/3] xsk: TX metadata txtime support
Date: Fri, 1 Dec 2023 11:46:20 +0100	[thread overview]
Message-ID: <d4f99931-442c-4cd7-b3cf-80d8681a2986@kernel.org> (raw)
In-Reply-To: <20231201062421.1074768-1-yoong.siang.song@intel.com>



On 12/1/23 07:24, Song Yoong Siang wrote:
> This series expands XDP TX metadata framework to include ETF HW offload.
> 
> Changes since v1:
> - rename Time-Based Scheduling (TBS) to Earliest TxTime First (ETF)
> - rename launch-time to txtime
> 

I strongly disagree with this renaming (sorry to disagree with Willem).

The i210 and i225 chips call this LaunchTime in their programmers 
datasheets, and even in the driver code[1].

Using this "txtime" name in the code is also confusing, because how can 
people reading the code know the difference between:
  - tmo_request_timestamp and tmo_request_txtime


[1] 
https://github.com/xdp-project/xdp-project/blob/master/areas/tsn/code01_follow_qdisc_TSN_offload.org

> v1: https://patchwork.kernel.org/project/netdevbpf/cover/20231130162028.852006-1-yoong.siang.song@intel.com/
> 
> Song Yoong Siang (3):
>    xsk: add ETF support to XDP Tx metadata
>    net: stmmac: Add txtime support to XDP ZC
>    selftests/bpf: Add txtime to xdp_hw_metadata
> 
>   Documentation/netlink/specs/netdev.yaml        |  4 ++++
>   Documentation/networking/xsk-tx-metadata.rst   |  5 +++++
>   drivers/net/ethernet/stmicro/stmmac/stmmac.h   |  2 ++
>   .../net/ethernet/stmicro/stmmac/stmmac_main.c  | 13 +++++++++++++
>   include/net/xdp_sock.h                         |  9 +++++++++
>   include/net/xdp_sock_drv.h                     |  1 +
>   include/uapi/linux/if_xdp.h                    |  9 +++++++++
>   include/uapi/linux/netdev.h                    |  3 +++
>   net/core/netdev-genl.c                         |  2 ++
>   net/xdp/xsk.c                                  |  3 +++
>   tools/include/uapi/linux/if_xdp.h              |  9 +++++++++
>   tools/include/uapi/linux/netdev.h              |  3 +++
>   tools/net/ynl/generated/netdev-user.c          |  1 +
>   tools/testing/selftests/bpf/xdp_hw_metadata.c  | 18 +++++++++++++++++-
>   14 files changed, 81 insertions(+), 1 deletion(-)
> 

  parent reply	other threads:[~2023-12-01 10:46 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-01  6:24 [xdp-hints] " Song Yoong Siang
2023-12-01  6:24 ` [xdp-hints] [PATCH bpf-next v2 1/3] xsk: add ETF support to XDP Tx metadata Song Yoong Siang
2023-12-01  6:24 ` [xdp-hints] [PATCH bpf-next v2 2/3] net: stmmac: Add txtime support to XDP ZC Song Yoong Siang
2023-12-01 15:02   ` [xdp-hints] " Jesper Dangaard Brouer
2023-12-01 15:26     ` Willem de Bruijn
2023-12-03 10:11     ` Song, Yoong Siang
2023-12-04 14:57       ` Willem de Bruijn
2023-12-05 14:43         ` Song, Yoong Siang
2023-12-05 14:55           ` Willem de Bruijn
2023-12-05 15:28             ` Song, Yoong Siang
2023-12-01  6:24 ` [xdp-hints] [PATCH bpf-next v2 3/3] selftests/bpf: Add txtime to xdp_hw_metadata Song Yoong Siang
2023-12-01 10:46 ` Jesper Dangaard Brouer [this message]
2023-12-01 13:43   ` [xdp-hints] Re: [PATCH bpf-next v2 0/3] xsk: TX metadata txtime support Song, Yoong Siang
2023-12-01 15:09     ` Willem de Bruijn
2023-12-01 15:39       ` Jesper Dangaard Brouer
2023-12-02 14:15         ` Willem de Bruijn
2023-12-03  9:16           ` Song, Yoong Siang

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