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Message-Id: <28f3b68dd0e0744e851a0b9d90fdee69792fbc0f.1724051326.git.0x1207@gmail.com>
Date: Mon, 19 Aug 2024 15:25:19 +0800
From: Furong Xu <0x1207@...il.com>
To: Serge Semin <fancer.lancer@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Joao Pinto <jpinto@...opsys.com>
Cc: netdev@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
xfr@...look.com,
Furong Xu <0x1207@...il.com>
Subject: [PATCH net-next v3 6/7] net: stmmac: support fp parameter of tc-taprio
tc-taprio can select whether traffic classes are express or preemptible.
0) tc qdisc add dev eth1 parent root handle 100 taprio \
num_tc 4 \
map 0 1 2 3 2 2 2 2 2 2 2 2 2 2 2 3 \
queues 1@0 1@1 1@2 1@3 \
base-time 1000000000 \
sched-entry S 03 10000000 \
sched-entry S 0e 10000000 \
flags 0x2 fp P E E E
1) After some traffic tests, MAC merge layer statistics are all good.
Local device:
[ {
"ifname": "eth1",
"pmac-enabled": true,
"tx-enabled": true,
"tx-active": true,
"tx-min-frag-size": 60,
"rx-min-frag-size": 60,
"verify-enabled": true,
"verify-time": 100,
"max-verify-time": 128,
"verify-status": "SUCCEEDED",
"statistics": {
"MACMergeFrameAssErrorCount": 0,
"MACMergeFrameSmdErrorCount": 0,
"MACMergeFrameAssOkCount": 0,
"MACMergeFragCountRx": 0,
"MACMergeFragCountTx": 17837,
"MACMergeHoldCount": 18639
}
} ]
Remote device:
[ {
"ifname": "end1",
"pmac-enabled": true,
"tx-enabled": true,
"tx-active": true,
"tx-min-frag-size": 60,
"rx-min-frag-size": 60,
"verify-enabled": true,
"verify-time": 100,
"max-verify-time": 128,
"verify-status": "SUCCEEDED",
"statistics": {
"MACMergeFrameAssErrorCount": 0,
"MACMergeFrameSmdErrorCount": 0,
"MACMergeFrameAssOkCount": 17189,
"MACMergeFragCountRx": 17837,
"MACMergeFragCountTx": 0,
"MACMergeHoldCount": 0
}
} ]
Tested on DWMAC CORE 5.10a
Signed-off-by: Furong Xu <0x1207@...il.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 17 ++++++-----------
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index a967c6f01e4e..05b870b35947 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -933,7 +933,6 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
u32 size, wid = priv->dma_cap.estwid, dep = priv->dma_cap.estdep;
struct timespec64 time, current_time, qopt_time;
ktime_t current_time_ns;
- bool fpe = false;
int i, ret = 0;
u64 ctr;
@@ -1018,16 +1017,12 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
switch (qopt->entries[i].command) {
case TC_TAPRIO_CMD_SET_GATES:
- if (fpe)
- return -EINVAL;
break;
case TC_TAPRIO_CMD_SET_AND_HOLD:
gates |= BIT(0);
- fpe = true;
break;
case TC_TAPRIO_CMD_SET_AND_RELEASE:
gates &= ~BIT(0);
- fpe = true;
break;
default:
return -EOPNOTSUPP;
@@ -1058,7 +1053,7 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
tc_taprio_map_maxsdu_txq(priv, qopt);
- if (fpe && !priv->dma_cap.fpesel) {
+ if (qopt->mqprio.preemptible_tcs && !priv->dma_cap.fpesel) {
mutex_unlock(&priv->est_lock);
return -EOPNOTSUPP;
}
@@ -1071,6 +1066,9 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
goto disable;
}
+ stmmac_fpe_set_preemptible_tcs(priv, priv->dev, qopt->mqprio.extack,
+ qopt->mqprio.preemptible_tcs);
+
netdev_info(priv->dev, "configured EST\n");
return 0;
@@ -1089,11 +1087,8 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
mutex_unlock(&priv->est_lock);
}
- stmmac_fpe_configure(priv, priv->ioaddr,
- &priv->fpe_cfg,
- priv->plat->tx_queues_to_use,
- priv->plat->rx_queues_to_use,
- false, false);
+ stmmac_fpe_set_preemptible_tcs(priv, priv->dev, qopt->mqprio.extack, 0);
+
netdev_info(priv->dev, "disabled FPE\n");
return ret;
--
2.34.1
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