From: Simon Horman <horms@kernel.org>
To: Breno Leitao <leitao@debian.org>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
"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>, Shuah Khan <shuah@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
rdunlap@infradead.org, kernel-team@meta.com
Subject: Re: [PATCH RFC net-next v3 6/8] netconsole: add support for sysdata and CPU population
Date: Thu, 30 Jan 2025 10:38:33 +0000 [thread overview]
Message-ID: <20250130103833.GJ113107@kernel.org> (raw)
In-Reply-To: <20250124-netcon_cpu-v3-6-12a0d286ba1d@debian.org>
On Fri, Jan 24, 2025 at 07:16:45AM -0800, Breno Leitao wrote:
> Add infrastructure to automatically append kernel-generated data (sysdata)
> to netconsole messages. As the first use case, implement CPU number
> population, which adds the CPU that sent the message.
>
> This change introduces three distinct data types:
> - extradata: The complete set of appended data (sysdata + userdata)
> - userdata: User-provided key-value pairs from userspace
> - sysdata: Kernel-populated data (e.g. cpu=XX)
>
> The implementation adds a new configfs attribute 'cpu_nr' to control CPU
> number population per target. When enabled, each message is tagged with
> its originating CPU. The sysdata is dynamically updated at message time
> and appended after any existing userdata.
>
> The CPU number is formatted as "cpu=XX" and is added to the extradata
> buffer, respecting the existing size limits.
>
> Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2025-01-30 10:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-24 15:16 [PATCH RFC net-next v3 0/8] netconsole: Add support for CPU population Breno Leitao
2025-01-24 15:16 ` [PATCH RFC net-next v3 1/8] netconsole: consolidate send buffers into netconsole_target struct Breno Leitao
2025-01-28 16:11 ` Simon Horman
2025-01-30 10:35 ` Simon Horman
2025-01-31 13:11 ` Breno Leitao
2025-01-24 15:16 ` [PATCH RFC net-next v3 2/8] netconsole: Rename userdata to extradata Breno Leitao
2025-01-30 10:36 ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 3/8] netconsole: Helper to count number of used entries Breno Leitao
2025-01-30 10:37 ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 4/8] netconsole: Introduce configfs helpers for sysdata features Breno Leitao
2025-01-28 16:12 ` Simon Horman
2025-01-30 10:37 ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 5/8] netconsole: Include sysdata in extradata entry count Breno Leitao
2025-01-30 10:38 ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 6/8] netconsole: add support for sysdata and CPU population Breno Leitao
2025-01-30 10:38 ` Simon Horman [this message]
2025-01-24 15:16 ` [PATCH RFC net-next v3 7/8] netconsole: selftest: test for sysdata CPU Breno Leitao
2025-01-30 10:38 ` Simon Horman
2025-01-24 15:16 ` [PATCH RFC net-next v3 8/8] netconsole: docs: Add documentation for CPU number auto-population Breno Leitao
2025-01-24 16:15 ` Andrew Lunn
2025-01-27 17:10 ` Breno Leitao
2025-01-24 16:02 ` [PATCH RFC net-next v3 0/8] netconsole: Add support for CPU population Andrew Lunn
2025-01-27 9:52 ` Breno Leitao
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