From: Richard Cochran <richardcochran@gmail.com>
To: Tariq Toukan <tariqt@nvidia.com>
Cc: Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Saeed Mahameed <saeedm@nvidia.com>,
Leon Romanovsky <leon@kernel.org>, Mark Bloch <mbloch@nvidia.com>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
linux-kernel@vger.kernel.org, Gal Pressman <gal@nvidia.com>,
Thomas Gleixner <tglx@linutronix.de>,
Carolina Jubran <cjubran@nvidia.com>,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Dragos Tatulea <dtatulea@nvidia.com>
Subject: Re: [PATCH net-next V2 1/3] ptp: Add ioctl commands to expose raw cycle counter values
Date: Thu, 4 Sep 2025 06:13:46 -0700 [thread overview]
Message-ID: <aLmQiiwI_1Uvb4J3@hoboy.vegasvil.org> (raw)
In-Reply-To: <1755008228-88881-2-git-send-email-tariqt@nvidia.com>
On Tue, Aug 12, 2025 at 05:17:06PM +0300, Tariq Toukan wrote:
> From: Carolina Jubran <cjubran@nvidia.com>
>
> Introduce two new ioctl commands, PTP_SYS_OFFSET_PRECISE_CYCLES and
> PTP_SYS_OFFSET_EXTENDED_CYCLES, to allow user space to access the
> raw free-running cycle counter from PTP devices.
>
> These ioctls are variants of the existing PRECISE and EXTENDED
> offset queries, but instead of returning device time in realtime,
> they return the raw cycle counter value.
>
> Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
> Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
> Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
next prev parent reply other threads:[~2025-09-04 13:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-12 14:17 [PATCH net-next V2 0/3] Support exposing raw cycle counters in PTP and mlx5 Tariq Toukan
2025-08-12 14:17 ` [PATCH net-next V2 1/3] ptp: Add ioctl commands to expose raw cycle counter values Tariq Toukan
2025-08-19 8:43 ` Paolo Abeni
2025-08-25 17:52 ` Mark Bloch
2025-08-28 10:00 ` Richard Cochran
2025-09-04 12:09 ` Carolina Jubran
2025-09-04 13:14 ` Richard Cochran
2025-09-09 5:52 ` Tariq Toukan
2025-09-09 8:31 ` Paolo Abeni
2025-09-04 13:13 ` Richard Cochran [this message]
2025-08-12 14:17 ` [PATCH net-next V2 2/3] net/mlx5: Extract MTCTR register read logic into helper function Tariq Toukan
2025-08-12 14:17 ` [PATCH net-next V2 3/3] net/mlx5: Support getcyclesx and getcrosscycles Tariq Toukan
2025-09-09 8:40 ` [PATCH net-next V2 0/3] Support exposing raw cycle counters in PTP and mlx5 patchwork-bot+netdevbpf
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