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linux/drivers/net/ethernet/ti
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Grygorii Strashko 0a26ba0603 net: ethernet: ti: cpsw: disable PTPv1 hw timestamping advertisement 
The TI CPTS does not natively support PTPv1, only PTPv2. But, as it
happens, the CPTS can provide HW timestamp for PTPv1 Sync messages, because
CPTS HW parser looks for PTP messageType id in PTP message octet 0 which
value is 0 for PTPv1. As result, CPTS HW can detect Sync messages for PTPv1
and PTPv2 (Sync messageType = 0 for both), but it fails for any other PTPv1
messages (Delay_req/resp) and will return PTP messageType id 0 for them.

The commit e9523a5a32 ("net: ethernet: ti: cpsw: enable
HWTSTAMP_FILTER_PTP_V1_L4_EVENT filter") added PTPv1 hw timestamping
advertisement by mistake, only to make Linux Kernel "timestamping" utility
work, and this causes issues with only PTPv1 compatible HW/SW - Sync HW
timestamped, but Delay_req/resp are not.

Hence, fix it disabling PTPv1 hw timestamping advertisement, so only PTPv1
compatible HW/SW can properly roll back to SW timestamping.

Fixes: e9523a5a32 ("net: ethernet: ti: cpsw: enable HWTSTAMP_FILTER_PTP_V1_L4_EVENT filter")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20201029190910.30789-1-grygorii.strashko@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-02 14:17:51 -08:00
..
am65-cpsw-ethtool.c net: ethernet: ti: ale: add cpsw_ale_get_num_entries api 2020-09-11 17:34:39 -07:00
am65-cpsw-nuss.c net: ethernet: ti: am65-cpsw: enable hw auto ageing 2020-09-11 17:34:39 -07:00
am65-cpsw-nuss.h net: ethernet: ti: am65-cpsw: enable hw auto ageing 2020-09-11 17:34:39 -07:00
am65-cpsw-qos.c
am65-cpsw-qos.h
am65-cpts.c net: ethernet: ti: am65-cpts: fix i2083 genf (and estf) Reconfiguration Issue 2020-08-31 12:29:52 -07:00
am65-cpts.h
cpmac.c
cpsw-common.c
cpsw-phy-sel.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cpsw.c net: ethernet: ti: cpsw: use true,false for bool variables 2020-09-19 14:23:14 -07:00
cpsw.h
cpsw_ale.c net: ethernet: ti: ale: add support for multi port k3 cpsw versions 2020-09-11 17:34:39 -07:00
cpsw_ale.h net: ethernet: ti: ale: switch to use tables for vlan entry description 2020-09-11 17:34:39 -07:00
cpsw_ethtool.c net: ethernet: ti: cpsw: disable PTPv1 hw timestamping advertisement 2020-11-02 14:17:51 -08:00
cpsw_new.c drivers/net/ethernet: clean up unused assignments 2020-09-25 16:29:00 -07:00
cpsw_priv.c net: ethernet: ti: cpsw: disable PTPv1 hw timestamping advertisement 2020-11-02 14:17:51 -08:00
cpsw_priv.h net: ethernet: ti: cpsw: use dev_id for ale configuration 2020-09-11 17:34:39 -07:00
cpsw_sl.c
cpsw_sl.h
cpsw_switchdev.c
cpsw_switchdev.h
cpts.c ethernet: ti: cpts: Use generic helper function 2020-08-19 16:09:19 -07:00
cpts.h
davinci_cpdma.c drivers/net/ethernet: clean up mis-targeted comments 2020-09-25 16:29:00 -07:00
davinci_cpdma.h
davinci_emac.c drivers/net/ethernet: clean up mis-targeted comments 2020-09-25 16:29:00 -07:00
davinci_mdio.c
k3-cppi-desc-pool.c
k3-cppi-desc-pool.h
Kconfig
Makefile
netcp.h
netcp_core.c
netcp_ethss.c net: netcp: ethss: use dev_id for ale configuration 2020-09-11 17:34:39 -07:00
netcp_sgmii.c
netcp_xgbepcsr.c
tlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-15 12:43:21 -07:00
tlan.h