From: Rohan G Thomas Date: Fri, 1 Dec 2023 05:52:52 +0000 (+0800) Subject: net: stmmac: Add support for EST cycle-time-extension X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9e95505fecb6b5a25b5230eb49c4d5b9e18077d0;p=linux.git 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 Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20231201055252.1302-4-rohan.g.thomas@intel.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index d4ee4684bc701..287767f6d6718 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;