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net: stmmac: tc: Fix TAPRIO division operation

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For ARCHs that don't support 64 bits division we need to use the
helpers.

Fixes: b60189e039 ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-12-18 23:55:01 +01:00 committed by David S. Miller
parent 6bff001702
commit a1ec57c020
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
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@ -599,6 +599,7 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
struct timespec64 time;
bool fpe = false;
int i, ret = 0;
u64 ctr;
if (!priv->dma_cap.estsel)
return -EOPNOTSUPP;
@ -694,8 +695,9 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
priv->plat->est->btr[0] = (u32)time.tv_nsec;
priv->plat->est->btr[1] = (u32)time.tv_sec;
priv->plat->est->ctr[0] = (u32)(qopt->cycle_time % NSEC_PER_SEC);
priv->plat->est->ctr[1] = (u32)(qopt->cycle_time / NSEC_PER_SEC);
ctr = qopt->cycle_time;
priv->plat->est->ctr[0] = do_div(ctr, NSEC_PER_SEC);
priv->plat->est->ctr[1] = (u32)ctr;
if (fpe && !priv->dma_cap.fpesel)
return -EOPNOTSUPP;