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Date: Thu, 18 Mar 2021 08:50:53 +0800
From: mohammad.athari.ismail@...el.com
To: Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...com>,
Jose Abreu <joabreu@...opsys.com>,
"David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: Ong Boon Leong <boon.leong.ong@...el.com>,
Voon Weifeng <weifeng.voon@...el.com>, vee.khee.wong@...el.com,
netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
mohammad.athari.ismail@...el.com
Subject: [PATCH net-next 2/2] net: stmmac: Add EST errors into ethtool statistic
From: Ong Boon Leong <boon.leong.ong@...el.com>
Below EST errors are added into ethtool statistic:
1) Constant Gate Control Error (CGCE):
The counter "mtl_est_cgce" increases everytime CGCE interrupt is
triggered.
2) Head-of-Line Blocking due to Scheduling (HLBS):
The counter "mtl_est_hlbs" increases everytime HLBS interrupt is
triggered.
3) Head-of-Line Blocking due to Frame Size (HLBF):
The counter "mtl_est_hlbf" increases everytime HLBF interrupt is
triggered.
4) Base Time Register error (BTRE):
The counter "mtl_est_btre" increases everytime BTRE interrupt is
triggered but BTRL not reaches maximum value of 15.
5) Base Time Register Error Loop Count (BTRL) reaches maximum value:
The counter "mtl_est_btrlm" increases everytime BTRE interrupt is
triggered and BTRL value reaches maximum value of 15.
Please refer to MTL_EST_STATUS register in DesignWare Cores Ethernet
Quality-of-Service Databook for more detail explanation.
Signed-off-by: Ong Boon Leong <boon.leong.ong@...el.com>
Signed-off-by: Voon Weifeng <weifeng.voon@...el.com>
Co-developed-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@...el.com>
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@...el.com>
---
drivers/net/ethernet/stmicro/stmmac/common.h | 6 ++++++
drivers/net/ethernet/stmicro/stmmac/dwmac5.c | 13 ++++++++++++-
drivers/net/ethernet/stmicro/stmmac/dwmac5.h | 2 +-
drivers/net/ethernet/stmicro/stmmac/hwif.h | 2 +-
.../net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 6 ++++++
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 ++-
6 files changed, 28 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 6f271c46368d..1c0c60bdf854 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -182,6 +182,12 @@ struct stmmac_extra_stats {
/* TSO */
unsigned long tx_tso_frames;
unsigned long tx_tso_nfrags;
+ /* EST */
+ unsigned long mtl_est_cgce;
+ unsigned long mtl_est_hlbs;
+ unsigned long mtl_est_hlbf;
+ unsigned long mtl_est_btre;
+ unsigned long mtl_est_btrlm;
};
/* Safety Feature statistics exposed by ethtool */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac5.c b/drivers/net/ethernet/stmicro/stmmac/dwmac5.c
index 809015f59ee2..0ae85f8adf67 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac5.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac5.c
@@ -608,7 +608,7 @@ int dwmac5_est_configure(void __iomem *ioaddr, struct stmmac_est *cfg,
}
void dwmac5_est_irq_status(void __iomem *ioaddr, struct net_device *dev,
- u32 txqcnt)
+ struct stmmac_extra_stats *x, u32 txqcnt)
{
u32 status, value, feqn, hbfq, hbfs, btrl;
u32 txqcnt_mask = (1 << txqcnt) - 1;
@@ -624,12 +624,16 @@ void dwmac5_est_irq_status(void __iomem *ioaddr, struct net_device *dev,
if (status & CGCE) {
/* Clear Interrupt */
writel(CGCE, ioaddr + MTL_EST_STATUS);
+
+ x->mtl_est_cgce++;
}
if (status & HLBS) {
value = readl(ioaddr + MTL_EST_SCH_ERR);
value &= txqcnt_mask;
+ x->mtl_est_hlbs++;
+
/* Clear Interrupt */
writel(value, ioaddr + MTL_EST_SCH_ERR);
@@ -649,6 +653,8 @@ void dwmac5_est_irq_status(void __iomem *ioaddr, struct net_device *dev,
hbfq = (value & SZ_CAP_HBFQ_MASK(txqcnt)) >> SZ_CAP_HBFQ_SHIFT;
hbfs = value & SZ_CAP_HBFS_MASK;
+ x->mtl_est_hlbf++;
+
/* Clear Interrupt */
writel(feqn, ioaddr + MTL_EST_FRM_SZ_ERR);
@@ -658,6 +664,11 @@ void dwmac5_est_irq_status(void __iomem *ioaddr, struct net_device *dev,
}
if (status & BTRE) {
+ if ((status & BTRL) == BTRL_MAX)
+ x->mtl_est_btrlm++;
+ else
+ x->mtl_est_btre++;
+
btrl = (status & BTRL) >> BTRL_SHIFT;
if (net_ratelimit())
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac5.h b/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
index 7174f5e1501b..709bbfc9ae61 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
@@ -142,7 +142,7 @@ int dwmac5_flex_pps_config(void __iomem *ioaddr, int index,
int dwmac5_est_configure(void __iomem *ioaddr, struct stmmac_est *cfg,
unsigned int ptp_rate);
void dwmac5_est_irq_status(void __iomem *ioaddr, struct net_device *dev,
- u32 txqcnt);
+ struct stmmac_extra_stats *x, u32 txqcnt);
void dwmac5_fpe_configure(void __iomem *ioaddr, u32 num_txq, u32 num_rxq,
bool enable);
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 2a53c9ca4f84..7ebe76c02474 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -394,7 +394,7 @@ struct stmmac_ops {
int (*est_configure)(void __iomem *ioaddr, struct stmmac_est *cfg,
unsigned int ptp_rate);
void (*est_irq_status)(void __iomem *ioaddr, struct net_device *dev,
- u32 txqcnt);
+ struct stmmac_extra_stats *x, u32 txqcnt);
void (*fpe_configure)(void __iomem *ioaddr, u32 num_txq, u32 num_rxq,
bool enable);
};
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index c5642985ef95..00595b7552bc 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -158,6 +158,12 @@ static const struct stmmac_stats stmmac_gstrings_stats[] = {
/* TSO */
STMMAC_STAT(tx_tso_frames),
STMMAC_STAT(tx_tso_nfrags),
+ /* EST */
+ STMMAC_STAT(mtl_est_cgce),
+ STMMAC_STAT(mtl_est_hlbs),
+ STMMAC_STAT(mtl_est_hlbf),
+ STMMAC_STAT(mtl_est_btre),
+ STMMAC_STAT(mtl_est_btrlm),
};
#define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d92b799e3ec4..6e238318e2ec 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4287,7 +4287,8 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
if (priv->dma_cap.estsel)
- stmmac_est_irq_status(priv, priv->ioaddr, priv->dev, tx_cnt);
+ stmmac_est_irq_status(priv, priv->ioaddr, priv->dev,
+ &priv->xstats, tx_cnt);
/* To handle GMAC own interrupts */
if ((priv->plat->has_gmac) || xmac) {
--
2.17.1
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