From: Rohan G Thomas <rohan.g.thomas@intel.com>
To: "David S . Miller" <davem@davemloft.net>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Richard Cochran <richardcochran@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Serge Semin <fancer.lancer@gmail.com>
Cc: netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
Rohan G Thomas <rohan.g.thomas@intel.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH net-next v2 3/3] net: stmmac: Add support for EST cycle-time-extension
Date: Fri, 1 Dec 2023 13:52:52 +0800 [thread overview]
Message-ID: <20231201055252.1302-4-rohan.g.thomas@intel.com> (raw)
In-Reply-To: <20231201055252.1302-1-rohan.g.thomas@intel.com>
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>
---
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
next prev parent reply other threads:[~2023-12-01 5:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-01 5:52 [PATCH net-next v2 0/3] net: stmmac: EST implementation Rohan G Thomas
2023-12-01 5:52 ` [PATCH net-next v2 1/3] net: stmmac: xgmac: EST interrupts handling Rohan G Thomas
2023-12-01 5:52 ` [PATCH net-next v2 2/3] net: stmmac: Refactor EST implementation Rohan G Thomas
2023-12-01 5:52 ` Rohan G Thomas [this message]
2023-12-05 2:50 ` [PATCH net-next v2 0/3] net: stmmac: " patchwork-bot+netdevbpf
2023-12-05 4:02 ` Serge Semin
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