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Date: Mon, 17 Oct 2022 20:19:16 +0300 From: Vladimir Oltean <olteanv@...il.com> To: Arun Ramadoss <arun.ramadoss@...rochip.com> Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, woojung.huh@...rochip.com, UNGLinuxDriver@...rochip.com, andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com, davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, linux@...linux.org.uk, Tristram.Ha@...rochip.com, richardcochran@...il.com, ceggers@...i.de, b.hutchman@...il.com Subject: Re: [RFC Patch net-next 0/6] net: dsa: microchip: add gPTP support for LAN937x switch Hi Arun, On Fri, Oct 14, 2022 at 08:58:51PM +0530, Arun Ramadoss wrote: > The LAN937x switch has capable for supporting IEEE 1588 PTP protocol. This > patch series add gPTP profile support and tested using the ptp4l application. > LAN937x has the same PTP register set similar to KSZ9563, hence the > implementation has been made common for the ksz switches. But the testing is > done only for lan937x switch. Would it be possible to actually test these patches on KSZ9563? Christian Eggers tried to add PTP support for this switch a while ago, and he claims that two-step TX timestamping was de-featured for KSZ95xx due to hardware errata. https://patchwork.ozlabs.org/project/netdev/patch/20201019172435.4416-8-ceggers@arri.de/ > > Arun Ramadoss (6): > net: dsa: microchip: adding the posix clock support > net: dsa: microchip: Initial hardware time stamping support > net: dsa: microchip: Manipulating absolute time using ptp hw clock > net: dsa: microchip: enable the ptp interrupt for timestamping > net: dsa: microchip: Adding the ptp packet reception logic > net: dsa: microchip: add the transmission tstamp logic > > drivers/net/dsa/microchip/Kconfig | 10 + > drivers/net/dsa/microchip/Makefile | 1 + > drivers/net/dsa/microchip/ksz_common.c | 43 +- > drivers/net/dsa/microchip/ksz_common.h | 31 + > drivers/net/dsa/microchip/ksz_ptp.c | 755 ++++++++++++++++++++++++ > drivers/net/dsa/microchip/ksz_ptp.h | 84 +++ > drivers/net/dsa/microchip/ksz_ptp_reg.h | 68 +++ > include/linux/dsa/ksz_common.h | 53 ++ > net/dsa/tag_ksz.c | 156 ++++- > 9 files changed, 1192 insertions(+), 9 deletions(-) > create mode 100644 drivers/net/dsa/microchip/ksz_ptp.c > create mode 100644 drivers/net/dsa/microchip/ksz_ptp.h > create mode 100644 drivers/net/dsa/microchip/ksz_ptp_reg.h > create mode 100644 include/linux/dsa/ksz_common.h > > > base-commit: 66ae04368efbe20eb8951c9a76158f99ce672f25 > -- > 2.36.1 >
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