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Date: Mon, 8 Jun 2026 14:20:47 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Abhijit Gangurde <abhijit.gangurde@amd.com>
Cc: <jgg@ziepe.ca>, <leon@kernel.org>, <brett.creeley@amd.com>,
 <andrew+netdev@lunn.ch>, <davem@davemloft.net>, <edumazet@google.com>,
 <pabeni@redhat.com>, <allen.hubbe@amd.com>, <nikhil.agarwal@amd.com>,
 <linux-rdma@vger.kernel.org>, <netdev@vger.kernel.org>,
 <linux-kernel@vger.kernel.org>, David Woodhouse <dwmw2@infradead.org>
Subject: Re: [for-next v3 0/5] ionic: RDMA completion timestamping support
Message-ID: <20260608142047.6deff079@kernel.org>
In-Reply-To: <20260606050003.3648306-1-abhijit.gangurde@amd.com>
References: <20260606050003.3648306-1-abhijit.gangurde@amd.com>
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On Sat, 6 Jun 2026 10:29:58 +0530 Abhijit Gangurde wrote:
> This series adds RDMA completion timestamp support for ionic.
> 
> It enables PHC registration for RDMA timestamp capability, exposes a PHC
> state page for safe user-space reads, maps that PHC state through RDMA
> ucontext mmap, and extends the RDMA CQE format to carry completion
> timestamps.
> 
> With this, user space can read completion timestamps and convert them to
> wall time with low overhead.

please CC David Woodhouse <dwmw2@infradead.org> on future versions.
Since David is working on uAPI for clocks he may have some thoughts.