Add support for cycle-time-extension. TER GCL-register needs to be
updated with the cycle-time-extension. Width of TER register is EST
time interval width + 7 bits.
Signed-off-by: Rohan G Thomas <rohan.g.thomas@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index d4ee4684bc70..287767f6d671 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -975,6 +975,8 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
return -EINVAL;
if (!qopt->cycle_time)
return -ERANGE;
+ if (qopt->cycle_time_extension >= BIT(wid + 7))
+ return -ERANGE;
if (!plat->est) {
plat->est = devm_kzalloc(priv->device, sizeof(*plat->est),
@@ -1041,6 +1043,8 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
priv->plat->est->ctr[0] = do_div(ctr, NSEC_PER_SEC);
priv->plat->est->ctr[1] = (u32)ctr;
+ priv->plat->est->ter = qopt->cycle_time_extension;
+
if (fpe && !priv->dma_cap.fpesel) {
mutex_unlock(&priv->plat->est->lock);
return -EOPNOTSUPP;
--
2.26.2
