Messages in this thread | | | From | Xiaoliang Yang <> | Subject | [PATCH v2 net-next 0/3] net: stmmac: re-configure tas basetime after ptp time adjust | Date | Mon, 5 Jul 2021 18:26:52 +0800 |
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If the DWMAC Ethernet device has already set the Qbv EST configuration before using ptp to synchronize the time adjustment, the Qbv base time may change to be the past time of the new current time. This is not allowed by hardware.
This patch calculates and re-configures the Qbv basetime after ptp time adjustment.
v1->v2: Update est mutex lock to protect btr/ctr r/w to be atomic. Add btr_reserve to store basetime from qopt and used as origin base time in Qbv re-configuration.
Xiaoliang Yang (3): net: stmmac: separate the tas basetime calculation function net: stmmac: add mutex lock to protect est parameters net: stmmac: ptp: update tas basetime after ptp adjust
drivers/net/ethernet/stmicro/stmmac/stmmac.h | 3 ++ .../net/ethernet/stmicro/stmmac/stmmac_ptp.c | 41 ++++++++++++++++- .../net/ethernet/stmicro/stmmac/stmmac_tc.c | 46 +++++++++++++------ include/linux/stmmac.h | 1 + 4 files changed, 77 insertions(+), 14 deletions(-)
-- 2.17.1
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