diff options
| author | Rohan G Thomas <rohan.g.thomas@intel.com> | 2023-12-01 13:52:52 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-04 18:37:39 -0800 |
| commit | 9e95505fecb6b5a25b5230eb49c4d5b9e18077d0 (patch) | |
| tree | ff3127dd6af0213c7bf3ac93ea2b90c355b2b443 /drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | |
| parent | c3f3b97238f6fd87b9d90b9a995ee5e69f751a74 (diff) | |
net: stmmac: Add support for EST cycle-time-extension
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@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231201055252.1302-4-rohan.g.thomas@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 4 |
1 files changed, 4 insertions, 0 deletions
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; |