From: "naamax.meir" <naamax.meir@linux.intel.com>
To: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>,
intel-wired-lan@osuosl.org, vinicius.gomes@intel.com
Cc: christopher.s.hall@intel.com, anthony.l.nguyen@intel.com
Subject: Re: [Intel-wired-lan] [PATCH net v1] igc: Fix PPS delta between two synchronized end-points
Date: Sun, 1 Jan 2023 13:29:42 +0200 [thread overview]
Message-ID: <bd5acfc0-35b8-84d7-003f-231b87bda7e5@linux.intel.com> (raw)
In-Reply-To: <20221214081038.1720-1-muhammad.husaini.zulkifli@intel.com>
On 12/14/2022 10:10, Muhammad Husaini Zulkifli wrote:
> From: Christopher S Hall <christopher.s.hall@intel.com>
>
> This patch fix the pulse per second output delta between
> two synchronized end-points.
>
> Based on Intel Discrete I225 Software User Manual Section
> 4.2.15 TimeSync Auxiliary Control Register, ST0[Bit 4] and
> ST1[Bit 7] must be set to ensure that clock output will be
> toggles based on frequency value defined. This is to ensure
> that output of the PPS is aligned with the clock.
>
> How to test:
>
> 1) Running time synchronization on both end points.
> Ex: ptp4l --step_threshold=1 -m -f gPTP.cfg -i <interface name>
>
> 2) Configure PPS output using below command for both end-points
> Ex: SDP0 on I225 REV4 SKU variant
>
> ./testptp -d /dev/ptp0 -L 0,2
> ./testptp -d /dev/ptp0 -p 1000000000
>
> 3) Measure the output using analyzer for both end-points
>
> Fixes: 87938851b6ef ("igc: enable auxiliary PHC functions for the i225")
> Signed-off-by: Christopher S Hall <christopher.s.hall@intel.com>
> Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
> ---
> drivers/net/ethernet/intel/igc/igc_defines.h | 2 ++
> drivers/net/ethernet/intel/igc/igc_ptp.c | 10 ++++++----
> 2 files changed, 8 insertions(+), 4 deletions(-)
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
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prev parent reply other threads:[~2023-01-01 11:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-14 8:10 [Intel-wired-lan] [PATCH net v1] igc: Fix PPS delta between two synchronized end-points Muhammad Husaini Zulkifli
2022-12-14 9:15 ` Neftin, Sasha
2023-01-01 11:29 ` naamax.meir [this message]
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