diff options
| author | Harini Katakam <harini.katakam@xilinx.com> | 2022-05-18 22:37:56 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-19 16:58:16 -0700 |
| commit | 5cebb40bc9554aafcc492431181f43c6231b0459 (patch) | |
| tree | cd8f827ed7daeed8360d517c1b52efd4de7fd0c5 /include/linux/ptp_classify.h | |
| parent | d904c8cc0302393640bc29ee62193f88ddc53126 (diff) | |
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 <harini.katakam@xilinx.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220518170756.7752-1-harini.katakam@xilinx.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/ptp_classify.h')
| -rw-r--r-- | include/linux/ptp_classify.h | 3 |
1 files changed, 3 insertions, 0 deletions
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 |