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Message-Id: <20231005121441.22916-1-rohan.g.thomas@intel.com> Date: Thu, 5 Oct 2023 20:14:41 +0800 From: Rohan G Thomas <rohan.g.thomas@...el.com> To: kuba@...nel.org Cc: alexandre.torgue@...s.st.com, andriy.shevchenko@...ux.intel.com, davem@...emloft.net, devicetree@...r.kernel.org, edumazet@...gle.com, fancer.lancer@...il.com, joabreu@...opsys.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, mcoquelin.stm32@...il.com, netdev@...r.kernel.org, pabeni@...hat.com, rohan.g.thomas@...el.com Subject: Re: [PATCH net-next 1/1] net: stmmac: xgmac: EST interrupts handling On Wed, 4 Oct 2023 09:26:13 -0700 Jakub Kicinski wrote: > On Tue, 3 Oct 2023 14:12:15 +0300 Serge Semin wrote: > > If I didn't miss some details after that we'll have a common EST > > module utilized for both DW QoS Eth and DW XGMAC IP-cores. > > So the question now is whether we want Rohan to do this conversion _first_, > in DW QoS 5, and then add xgmac part. Or the patch should go in as is and > you'll follow up with the conversion? Hi Jakub, Serge, If agreed, this commit can go in. I can submit another patch with the refactoring suggested by Serge. Again, thanks Serge for the prompt response. Regarding the below point in your earlier response, > > 2. PTP time offset setup performed by means of the > > MTL_EST_CONTROL.PTOV field. DW QoS Eth v5.x HW manual claims it's "The > > value of PTP Clock period multiplied by 6 in nanoseconds." So either Jose got > > mistaken by using _9_ for DW XGMAC v3.x or the DW XGMAC indeed is > > different in that aspect. This is a little confusing... I referred databooks for DW QoS Eth v5.30a and DW XGMAC v3.10a. In both this is mentioned as "The value of PTP Clock period multiplied by 9 in nanoseconds". Best Regards, Rohan
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