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| author | Kurt Kanzenbach <kurt@linutronix.de> | 2023-08-18 13:14:01 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-08-19 19:23:07 +0100 |
| commit | 58f2ffdedf7b05b318f2cdafaca69e4435c8478e (patch) | |
| tree | 654b8e2fe90a8bba034e4fa29ffa0f21fc8d04e4 | |
| parent | 4025d3e73abde4f65f4b04d4b1d8449b00e31473 (diff) | |
| download | linux-58f2ffdedf7b05b318f2cdafaca69e4435c8478e.tar.gz linux-58f2ffdedf7b05b318f2cdafaca69e4435c8478e.tar.bz2 linux-58f2ffdedf7b05b318f2cdafaca69e4435c8478e.zip | |
stmmac: intel: Enable correction of MAC propagation delay
All captured timestamps should be corrected by PHY, MAC and CDC introduced
latency/errors. The CDC correction is already used. Enable MAC propagation delay
correction as well which is available since commit 26cfb838aa00 ("net: stmmac:
correct MAC propagation delay").
Before:
|ptp4l[390.458]: rms 7 max 21 freq +177 +/- 14 delay 357 +/- 1
After:
|ptp4l[620.012]: rms 7 max 20 freq +195 +/- 14 delay 345 +/- 1
Tested on Intel Elkhart Lake.
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Johannes Zink <j.zink@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c index 979c755964b1..a3a249c63598 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c @@ -627,6 +627,7 @@ static int ehl_common_data(struct pci_dev *pdev, plat->rx_queues_to_use = 8; plat->tx_queues_to_use = 8; plat->flags |= STMMAC_FLAG_USE_PHY_WOL; + plat->flags |= STMMAC_FLAG_HWTSTAMP_CORRECT_LATENCY; plat->safety_feat_cfg->tsoee = 1; plat->safety_feat_cfg->mrxpee = 1; |