From 5cebb40bc9554aafcc492431181f43c6231b0459 Mon Sep 17 00:00:00 2001 From: Harini Katakam Date: Wed, 18 May 2022 22:37:56 +0530 Subject: net: macb: Fix PTP one step sync support PTP one step sync packets cannot have CSUM padding and insertion in SW since time stamp is inserted on the fly by HW. In addition, ptp4l version 3.0 and above report an error when skb timestamps are reported for packets that not processed for TX TS after transmission. Add a helper to identify PTP one step sync and fix the above two errors. Add a common mask for PTP header flag field "twoStepflag". Also reset ptp OSS bit when one step is not selected. Fixes: ab91f0a9b5f4 ("net: macb: Add hardware PTP support") Fixes: 653e92a9175e ("net: macb: add support for padding and fcs computation") Signed-off-by: Harini Katakam Reviewed-by: Radhey Shyam Pandey Reviewed-by: Claudiu Beznea Link: https://lore.kernel.org/r/20220518170756.7752-1-harini.katakam@xilinx.com Signed-off-by: Jakub Kicinski --- include/linux/ptp_classify.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/ptp_classify.h') diff --git a/include/linux/ptp_classify.h b/include/linux/ptp_classify.h index fefa7790dc46..2b6ea36ad162 100644 --- a/include/linux/ptp_classify.h +++ b/include/linux/ptp_classify.h @@ -43,6 +43,9 @@ #define OFF_PTP_SOURCE_UUID 22 /* PTPv1 only */ #define OFF_PTP_SEQUENCE_ID 30 +/* PTP header flag fields */ +#define PTP_FLAG_TWOSTEP BIT(1) + /* Below defines should actually be removed at some point in time. */ #define IP6_HLEN 40 #define UDP_HLEN 8 -- cgit v1.2.3-73-gaa49b