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sundance: Add initial ethtool stats support

PATCH In review Denis Kirjanov 6 participants 18 messages Oct 9, 2010 – Oct 13, 2010

Subsystems (2)
Networking Network drivers
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Denis Kirjanov

author
#0 lore raw

PATCH 1/1 sundance: Add initial ethtool stats support

Add initial ethtool statistics support

Signed-off-by Denis Kirjanov <[email protected]>
---
 drivers/net/sundance.c |   46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 46 insertions(+), 0 deletions(-)
drivers/net/sundance.c +46 -0
index 27d69aa..685845b 100644
@@ -1564,6 +1564,18 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_packets" },
+	{ "tx_bytes" },
+	{ "rx_packets" },
+	{ "rx_bytes" },
+	{ "tx_errors" },
+	{ "tx_dropped" },
+	{ "rx_errors" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1622,6 +1634,37 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1631,6 +1674,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0
#1 lore raw

PATCH 1/1 sundance: get_stats proper locking

Quoted 1 line · Denis Kirjanov

Add initial ethtool statistics support

OK, I guess its time to add proper locking into sundance after all ;)

[PATCH net-next] sundance: get_stats proper locking

sundance get_stats() should not be run concurrently, add a lock to avoid potential losses.

Note: Remove unused rx_lock field

Signed-off-by Eric Dumazet <[email protected]>
---
 drivers/net/sundance.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
drivers/net/sundance.c +6 -4
index 27d69aa..4283cc5 100644
@@ -365,7 +365,6 @@ struct netdev_private {
 	struct timer_list timer;		/* Media monitoring timer. */
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
-	spinlock_t rx_lock;			/* Group with Tx control cache line. */
 	int msg_enable;
 	int chip_id;
 	unsigned int cur_rx, dirty_rx;		/* Producer/consumer ring indices */

@@ -390,6 +389,7 @@ struct netdev_private {
 	unsigned char phys[MII_CNT];		/* MII device addresses, only first one used. */
 	struct pci_dev *pci_dev;
 	void __iomem *base;
+	spinlock_t statlock;
 };
 
 /* The station address location in the EEPROM. */

@@ -514,6 +514,7 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
 	np->chip_id = chip_idx;
 	np->msg_enable = (1 << debug) - 1;
 	spin_lock_init(&np->lock);
+	spin_lock_init(&np->statlock);
 	tasklet_init(&np->rx_tasklet, rx_poll, (unsigned long)dev);
 	tasklet_init(&np->tx_tasklet, tx_poll, (unsigned long)dev);
 

@@ -1486,10 +1487,9 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
 	int i;
+	unsigned long flags;
 
-	/* We should lock this segment of code for SMP eventually, although
-	   the vulnerability window is very small and statistics are
-	   non-critical. */
+	spin_lock_irqsave(&np->statlock, flags);
 	/* The chip only need report frame silently dropped. */
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);

@@ -1506,6 +1506,8 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsHigh) << 16;
 
+	spin_unlock_irqrestore(&np->statlock, flags);
+
 	return &dev->stats;
 }
maintainer Applied
#2 lore raw

Re: [PATCH net-next] sundance: get_stats proper locking

From: Eric Dumazet <[email protected]>
Date: Sat, 09 Oct 2010 14:17:01 +0200

Quoted 5 lines · Denis Kirjanov
Quoted 1 line

Add initial ethtool statistics support

OK, I guess its time to add proper locking into sundance after all ;)

Quoted 8 lines

[PATCH net-next] sundance: get_stats proper locking

sundance get_stats() should not be run concurrently, add a lock to avoid potential losses.

Note: Remove unused rx_lock field

Signed-off-by Eric Dumazet <[email protected]>

Applied.

#3 lore raw
In reply to Denis Kirjanov
Quoted 31 lines · Denis Kirjanov

Add initial ethtool statistics support

Signed-off-by Denis Kirjanov <[email protected]>
---
 drivers/net/sundance.c |   46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 46 insertions(+), 0 deletions(-)
drivers/net/sundance.c +12 -0
index 27d69aa..685845b 100644
@@ -1564,6 +1564,18 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_packets" },
+	{ "tx_bytes" },
+	{ "rx_packets" },
+	{ "rx_bytes" },
+	{ "tx_errors" },
+	{ "tx_dropped" },
+	{ "rx_errors" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

drivers/net/sundance.c static void set_msglevel(struct net_device *dev, u32 val) · line 1639

Quoted 6 lines
drivers/net/sundance.c +3 -0
@@ -1622,6 +1634,37 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{

	if (stringset != ETH_SS_STATS)
		return;
Quoted 41 lines
drivers/net/sundance.c +31 -0
+	memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1631,6 +1674,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
#4 lore raw
In reply to Denis Kirjanov
Quoted 1 line · Denis Kirjanov

Add initial ethtool statistics support

[...]

Quoted 4 lines
drivers/net/sundance.c +4 -0
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);

drivers/net/sundance.c static void set_msglevel(struct net_device *dev, u32 val) · line 1666

Quoted 10 lines
drivers/net/sundance.c +10 -0
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}

[...]

There is no point in adding ethtool stats that merely mirror the baseline net device stats.

Ben.

Signature · 3 lines
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
author
#5 lore raw
Quoted 19 lines · Ben Hutchings
Quoted 1 line · Denis Kirjanov

Add initial ethtool statistics support

[...]

Quoted 14 lines
drivers/net/sundance.c +14 -0
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}

[...]

Quoted 2 lines

There is no point in adding ethtool stats that merely mirror the baseline net device stats.

Fair enough,
I'll add extra stats shortly

Quoted 2 lines

Ben.

author
#6 lore raw
In reply to Ben Hutchings
Quoted 19 lines · Ben Hutchings
Quoted 1 line · Denis Kirjanov

Add initial ethtool statistics support

[...]

Quoted 14 lines
(quoted diff) +14 -0
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}

[...]

Quoted 5 lines

There is no point in adding ethtool stats that merely mirror the baseline net device stats.

Ben.

[PATCH -next v2] sundance: Add ethtool stats support

Add ethtool stats support

Signed-off-by Denis Kirjanov <[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats

drivers/net/sundance.c | 90 ++++++++++++++++++++++++++++++++++++++++++++----

 1 files changed, 83 insertions(+), 7 deletions(-)
drivers/net/sundance.c +83 -7
index 4283cc5..4e3ff71 100644
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		unsigned long tx_multiple_collisions;
+		unsigned long tx_single_collisions;
+		unsigned long tx_late_collisions;
+		unsigned long tx_deffered;
+		unsigned long tx_deffered_excessive;
+		unsigned long tx_aborted;
+		unsigned long tx_bcasts;
+		unsigned long rx_bcasts;
+		unsigned long tx_mcasts;
+		unsigned long rx_mcasts;
+	} xstats;
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
 	int msg_enable;

@@ -1486,7 +1499,6 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
-	int i;
 	unsigned long flags;
 
 	spin_lock_irqsave(&np->statlock, flags);

@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;
+
+	np->xstats.tx_deffered += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_deffered_excessive += ioread8(ioaddr + StatsTxXSDefer);
+	np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+	np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+	np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+	np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+	np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);

@@ -1566,6 +1588,21 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_deffered" },
+	{ "tx_deffered_excessive" },
+	{ "tx_aborted" },
+	{ "tx_bcasts" },
+	{ "rx_bcasts" },
+	{ "tx_mcasts" },
+	{ "rx_mcasts" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1624,6 +1661,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	int i = 0;
+
+	get_stats(dev);
+	data[i++] = np->xstats.tx_multiple_collisions;
+	data[i++] = np->xstats.tx_single_collisions;
+	data[i++] = np->xstats.tx_late_collisions;
+	data[i++] = np->xstats.tx_deffered;
+	data[i++] = np->xstats.tx_deffered_excessive;
+	data[i++] = np->xstats.tx_aborted;
+	data[i++] = np->xstats.tx_bcasts;
+	data[i++] = np->xstats.rx_bcasts;
+	data[i++] = np->xstats.tx_mcasts;
+	data[i++] = np->xstats.rx_mcasts;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1633,6 +1706,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0
Acked-by
#7 lore raw
Quoted 30 lines · Denis Kirjanov
Quoted 19 lines · Ben Hutchings
Quoted 1 line · Denis Kirjanov

Add initial ethtool statistics support

[...]

Quoted 14 lines
(quoted diff) +14 -0
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct net_device_stats *netdev_stats = get_stats(dev);
+	int i = 0;
+
+	data[i++] = netdev_stats->tx_packets;
+	data[i++] = netdev_stats->tx_bytes;
+	data[i++] = netdev_stats->rx_packets;
+	data[i++] = netdev_stats->rx_bytes;
+	data[i++] = netdev_stats->tx_errors;
+	data[i++] = netdev_stats->tx_dropped;
+	data[i++] = netdev_stats->rx_errors;
+}

[...]

Quoted 5 lines

There is no point in adding ethtool stats that merely mirror the baseline net device stats.

Ben.

[PATCH -next v2] sundance: Add ethtool stats support

Add ethtool stats support

Quoted 8 lines
Signed-off-by Denis Kirjanov<[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats

drivers/net/sundance.c | 90 ++++++++++++++++++++++++++++++++++++++++++++----

  1 files changed, 83 insertions(+), 7 deletions(-)
Acked-by Jeff Garzik <[email protected]>

glad somebody tackled this...

maintainer
#8 lore raw
In reply to Denis Kirjanov

From: Denis Kirjanov <[email protected]>
Date: Sat, 09 Oct 2010 23:41:32 +0400

drivers/net/sundance.c struct netdev_private { · line 378

Quoted 13 lines
drivers/net/sundance.c +13 -0
+	/* ethtool extra stats */
+	struct {
+		unsigned long tx_multiple_collisions;
+		unsigned long tx_single_collisions;
+		unsigned long tx_late_collisions;
+		unsigned long tx_deffered;
+		unsigned long tx_deffered_excessive;
+		unsigned long tx_aborted;
+		unsigned long tx_bcasts;
+		unsigned long rx_bcasts;
+		unsigned long tx_mcasts;
+		unsigned long rx_mcasts;
+	} xstats;

I think these should be "u64".

author
#9 lore raw
Quoted 19 lines · David Miller

From: Denis Kirjanov <[email protected]>
Date: Sat, 09 Oct 2010 23:41:32 +0400

Review

Quoted 13 lines
(quoted diff) +13 -0
+	/* ethtool extra stats */
+	struct {
+		unsigned long tx_multiple_collisions;
+		unsigned long tx_single_collisions;
+		unsigned long tx_late_collisions;
+		unsigned long tx_deffered;
+		unsigned long tx_deffered_excessive;
+		unsigned long tx_aborted;
+		unsigned long tx_bcasts;
+		unsigned long rx_bcasts;
+		unsigned long tx_mcasts;
+		unsigned long rx_mcasts;
+	} xstats;

I think these should be "u64".

[PATCH -next v3] sundance: Add ethtool stats support Add ethtool stats support

Signed-off-by Denis Kirjanov <[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats
V3:
make counters 64-bits wide

 drivers/net/sundance.c |   90 ++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 83 insertions(+), 7 deletions(-)
drivers/net/sundance.c +83 -7
index 4283cc5..159f7e7 100644
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		u64 tx_multiple_collisions;
+		u64 tx_single_collisions;
+		u64 tx_late_collisions;
+		u64 tx_deffered;
+		u64 tx_deffered_excessive;
+		u64 tx_aborted;
+		u64 tx_bcasts;
+		u64 rx_bcasts;
+		u64 tx_mcasts;
+		u64 rx_mcasts;
+	} xstats;
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
 	int msg_enable;

@@ -1486,7 +1499,6 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
-	int i;
 	unsigned long flags;
 
 	spin_lock_irqsave(&np->statlock, flags);

@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;
+
+	np->xstats.tx_deffered += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_deffered_excessive += ioread8(ioaddr + StatsTxXSDefer);
+	np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+	np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+	np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+	np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+	np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);

@@ -1566,6 +1588,21 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_deffered" },
+	{ "tx_deffered_excessive" },
+	{ "tx_aborted" },
+	{ "tx_bcasts" },
+	{ "rx_bcasts" },
+	{ "tx_mcasts" },
+	{ "rx_mcasts" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1624,6 +1661,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	int i = 0;
+
+	get_stats(dev);
+	data[i++] = np->xstats.tx_multiple_collisions;
+	data[i++] = np->xstats.tx_single_collisions;
+	data[i++] = np->xstats.tx_late_collisions;
+	data[i++] = np->xstats.tx_deffered;
+	data[i++] = np->xstats.tx_deffered_excessive;
+	data[i++] = np->xstats.tx_aborted;
+	data[i++] = np->xstats.tx_bcasts;
+	data[i++] = np->xstats.rx_bcasts;
+	data[i++] = np->xstats.tx_mcasts;
+	data[i++] = np->xstats.rx_mcasts;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1633,6 +1706,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0
#10 lore raw

drivers/net/sundance.c

Quoted 1 line · Denis Kirjanov
drivers/net/sundance.c +0 -0

Hi Denis.

Just a few trivial misspellings of deffered -> deferred

Quoted 4 lines

index 4283cc5..159f7e7 100644

drivers/net/sundance.c struct netdev_private { · line 372

Quoted 10 lines
drivers/net/sundance.c +7 -0
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		u64 tx_multiple_collisions;
+		u64 tx_single_collisions;
+		u64 tx_late_collisions;
+		u64 tx_deffered;
+		u64 tx_deffered_excessive;

1

drivers/net/sundance.c static struct net_device_stats *get_stats(struct net_device *dev) · line 1519

Quoted 2 lines
drivers/net/sundance.c +2 -0
+	np->xstats.tx_deffered += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_deffered_excessive += ioread8(ioaddr + StatsTxXSDefer);

2

drivers/net/sundance.c static int __set_mac_addr(struct net_device *dev) · line 1598

Quoted 8 lines
drivers/net/sundance.c +8 -0
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_deffered" },
+	{ "tx_deffered_excessive" },

3

drivers/net/sundance.c static void set_msglevel(struct net_device *dev, u32 val) · line 1692

Quoted 2 lines
drivers/net/sundance.c +2 -0
+	data[i++] = np->xstats.tx_deffered;
+	data[i++] = np->xstats.tx_deffered_excessive;

4

author
#11 lore raw
Quoted 7 lines · Joe Perches

drivers/net/sundance.c

Quoted 1 line · Denis Kirjanov
drivers/net/sundance.c +0 -0

Hi Denis.

Just a few trivial misspellings of deffered -> deferred

Hi Joe,
thanks for pointing that out.

[PATCH -next v4] sundance: Add ethtool stats support

Add ethtool stats support

Signed-off-by Denis Kirjanov <[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats
V3:
make counters 64-bits wide
V4:
fixed some misspellings

 drivers/net/sundance.c |   90 ++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 83 insertions(+), 7 deletions(-)
drivers/net/sundance.c +83 -7
index 4283cc5..406ca45 100644
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		u64 tx_multiple_collisions;
+		u64 tx_single_collisions;
+		u64 tx_late_collisions;
+		u64 tx_defered;
+		u64 tx_defered_excessive;
+		u64 tx_aborted;
+		u64 tx_bcasts;
+		u64 rx_bcasts;
+		u64 tx_mcasts;
+		u64 rx_mcasts;
+	} xstats;
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
 	int msg_enable;

@@ -1486,7 +1499,6 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
-	int i;
 	unsigned long flags;
 
 	spin_lock_irqsave(&np->statlock, flags);

@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;
+
+	np->xstats.tx_defered += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_defered_excessive += ioread8(ioaddr + StatsTxXSDefer);
+	np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+	np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+	np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+	np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+	np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);

@@ -1566,6 +1588,21 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_defered" },
+	{ "tx_defered_excessive" },
+	{ "tx_aborted" },
+	{ "tx_bcasts" },
+	{ "rx_bcasts" },
+	{ "tx_mcasts" },
+	{ "rx_mcasts" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1624,6 +1661,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	int i = 0;
+
+	get_stats(dev);
+	data[i++] = np->xstats.tx_multiple_collisions;
+	data[i++] = np->xstats.tx_single_collisions;
+	data[i++] = np->xstats.tx_late_collisions;
+	data[i++] = np->xstats.tx_defered;
+	data[i++] = np->xstats.tx_defered_excessive;
+	data[i++] = np->xstats.tx_aborted;
+	data[i++] = np->xstats.tx_bcasts;
+	data[i++] = np->xstats.rx_bcasts;
+	data[i++] = np->xstats.tx_mcasts;
+	data[i++] = np->xstats.rx_mcasts;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1633,6 +1706,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0
#12 lore raw
Quoted 8 lines · Denis Kirjanov
drivers/net/sundance.c +0 -3
@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);

drivers/net/sundance.c static struct net_device_stats *get_stats(struct net_device *dev) · line 1516

Quoted 10 lines
drivers/net/sundance.c +7 -3
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;

Oh well..., really ?

Each time we are calling get_stats(), you do

dev->stats.collisions += (number of accumulated collisions since device is up)

instead of

dev->stats.collisions += (number of accumulated collisions since last time we read counters)

Can you see the problem ?

author
#13 lore raw
Quoted 29 lines · Eric Dumazet
Quoted 8 lines · Denis Kirjanov
drivers/net/sundance.c +0 -3
@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);

drivers/net/sundance.c static struct net_device_stats *get_stats(struct net_device *dev) · line 1516

Quoted 10 lines
drivers/net/sundance.c +7 -3
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;

Oh well..., really ?

Each time we are calling get_stats(), you do

dev->stats.collisions += (number of accumulated collisions since device is up)

Quoted 7 lines

instead of

dev->stats.collisions += (number of accumulated collisions since last time we read counters)

Can you see the problem ?

Oops, thanks Eric!
I'll fix it up and resend

Quoted 2 lines
author
#14 lore raw
In reply to Eric Dumazet
Quoted 26 lines · Eric Dumazet
Quoted 8 lines · Denis Kirjanov
(quoted diff) +0 -3
@@ -1494,13 +1506,23 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);

Review static struct net_device_stats *get_stats(struct net_device *dev) · line 1516

Quoted 10 lines
(quoted diff) +7 -3
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	np->xstats.tx_multiple_collisions += ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_single_collisions += ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_late_collisions += ioread8(ioaddr + StatsLateColl);
+	dev->stats.collisions += np->xstats.tx_multiple_collisions
+		+ np->xstats.tx_single_collisions
+		+ np->xstats.tx_late_collisions;

Oh well..., really ?

Each time we are calling get_stats(), you do

Quoted 7 lines

dev->stats.collisions += (number of accumulated collisions since device is up)

instead of

dev->stats.collisions += (number of accumulated collisions since last time we read counters)

Ok, this is a fixed patch.
Thanks.

Subject: [PATCH -next V5] sundance: Add ethtool stats support

Add ethtool stats support

Signed-off-by Denis Kirjanov <[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats
V3:
make counters 64-bits wide
V4:
fixed some misspellings
V5:
fixed issue with collisions counting

 drivers/net/sundance.c |   94 ++++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 87 insertions(+), 7 deletions(-)
drivers/net/sundance.c +87 -7
index 4283cc5..bfa2a01 100644
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		u64 tx_multiple_collisions;
+		u64 tx_single_collisions;
+		u64 tx_late_collisions;
+		u64 tx_defered;
+		u64 tx_defered_excessive;
+		u64 tx_aborted;
+		u64 tx_bcasts;
+		u64 rx_bcasts;
+		u64 tx_mcasts;
+		u64 rx_mcasts;
+	} xstats;
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
 	int msg_enable;

@@ -1486,21 +1499,34 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
-	int i;
 	unsigned long flags;
+	u8 late_coll, single_coll, mult_coll;
 
 	spin_lock_irqsave(&np->statlock, flags);
 	/* The chip only need report frame silently dropped. */
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	mult_coll = ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_multiple_collisions += mult_coll;
+	single_coll = ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_single_collisions += single_coll;
+	late_coll = ioread8(ioaddr + StatsLateColl);
+	np->xstats.tx_late_collisions += late_coll;
+	dev->stats.collisions += mult_coll
+		+ single_coll
+		+ late_coll;
+
+	np->xstats.tx_defered += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_defered_excessive += ioread8(ioaddr + StatsTxXSDefer);
+	np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+	np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+	np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+	np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+	np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);

@@ -1566,6 +1592,21 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_defered" },
+	{ "tx_defered_excessive" },
+	{ "tx_aborted" },
+	{ "tx_bcasts" },
+	{ "rx_bcasts" },
+	{ "tx_mcasts" },
+	{ "rx_mcasts" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1624,6 +1665,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	int i = 0;
+
+	get_stats(dev);
+	data[i++] = np->xstats.tx_multiple_collisions;
+	data[i++] = np->xstats.tx_single_collisions;
+	data[i++] = np->xstats.tx_late_collisions;
+	data[i++] = np->xstats.tx_defered;
+	data[i++] = np->xstats.tx_defered_excessive;
+	data[i++] = np->xstats.tx_aborted;
+	data[i++] = np->xstats.tx_bcasts;
+	data[i++] = np->xstats.rx_bcasts;
+	data[i++] = np->xstats.tx_mcasts;
+	data[i++] = np->xstats.rx_mcasts;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1633,6 +1710,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0
#15 lore raw

drivers/net/sundance.c struct netdev_private { · line 372

Quoted 2 lines · Denis Kirjanov
drivers/net/sundance.c +2 -0
+		u64 tx_defered;
+		u64 tx_defered_excessive;

Joe said correct english word is "deferred", not "defered"

author
#16 lore raw
Quoted 5 lines · Eric Dumazet

Review

Quoted 2 lines · Denis Kirjanov
(quoted diff) +2 -0
+		u64 tx_defered;
+		u64 tx_defered_excessive;

PATCH -next v5] sundance: Add ethtool stats support

Add ethtool stats support.

Signed-off-by Denis Kirjanov <[email protected]>

---
V2:
check for the ETH_SS_STATS in get_string()
use xstats struct for ethtool stats
V3:
make counters 64-bits wide
V4:
fixed some misspellings
V5:
fixed issue with collisions counting

drivers/net/sundance.c | 94 ++++++++++++++++++++++++++++++++++++++++++++----

 1 files changed, 87 insertions(+), 7 deletions(-)
drivers/net/sundance.c +87 -7
index 4283cc5..3ed2a67 100644
@@ -363,6 +363,19 @@ struct netdev_private {
         dma_addr_t tx_ring_dma;
         dma_addr_t rx_ring_dma;
 	struct timer_list timer;		/* Media monitoring timer. */
+	/* ethtool extra stats */
+	struct {
+		u64 tx_multiple_collisions;
+		u64 tx_single_collisions;
+		u64 tx_late_collisions;
+		u64 tx_deferred;
+		u64 tx_deferred_excessive;
+		u64 tx_aborted;
+		u64 tx_bcasts;
+		u64 rx_bcasts;
+		u64 tx_mcasts;
+		u64 rx_mcasts;
+	} xstats;
 	/* Frequently used values: keep some adjacent for cache effect. */
 	spinlock_t lock;
 	int msg_enable;

@@ -1486,21 +1499,34 @@ static struct net_device_stats *get_stats(struct net_device *dev)
 {
 	struct netdev_private *np = netdev_priv(dev);
 	void __iomem *ioaddr = np->base;
-	int i;
 	unsigned long flags;
+	u8 late_coll, single_coll, mult_coll;
 
 	spin_lock_irqsave(&np->statlock, flags);
 	/* The chip only need report frame silently dropped. */
 	dev->stats.rx_missed_errors	+= ioread8(ioaddr + RxMissed);
 	dev->stats.tx_packets += ioread16(ioaddr + TxFramesOK);
 	dev->stats.rx_packets += ioread16(ioaddr + RxFramesOK);
-	dev->stats.collisions += ioread8(ioaddr + StatsLateColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsMultiColl);
-	dev->stats.collisions += ioread8(ioaddr + StatsOneColl);
 	dev->stats.tx_carrier_errors += ioread8(ioaddr + StatsCarrierError);
-	ioread8(ioaddr + StatsTxDefer);
-	for (i = StatsTxDefer; i <= StatsMcastRx; i++)
-		ioread8(ioaddr + i);
+
+	mult_coll = ioread8(ioaddr + StatsMultiColl);
+	np->xstats.tx_multiple_collisions += mult_coll;
+	single_coll = ioread8(ioaddr + StatsOneColl);
+	np->xstats.tx_single_collisions += single_coll;
+	late_coll = ioread8(ioaddr + StatsLateColl);
+	np->xstats.tx_late_collisions += late_coll;
+	dev->stats.collisions += mult_coll
+		+ single_coll
+		+ late_coll;
+
+	np->xstats.tx_deferred += ioread8(ioaddr + StatsTxDefer);
+	np->xstats.tx_deferred_excessive += ioread8(ioaddr + StatsTxXSDefer);
+	np->xstats.tx_aborted += ioread8(ioaddr + StatsTxAbort);
+	np->xstats.tx_bcasts += ioread8(ioaddr + StatsBcastTx);
+	np->xstats.rx_bcasts += ioread8(ioaddr + StatsBcastRx);
+	np->xstats.tx_mcasts += ioread8(ioaddr + StatsMcastTx);
+	np->xstats.rx_mcasts += ioread8(ioaddr + StatsMcastRx);
+
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsLow);
 	dev->stats.tx_bytes += ioread16(ioaddr + TxOctetsHigh) << 16;
 	dev->stats.rx_bytes += ioread16(ioaddr + RxOctetsLow);

@@ -1566,6 +1592,21 @@ static int __set_mac_addr(struct net_device *dev)
 	return 0;
 }
 
+static const struct {
+	const char name[ETH_GSTRING_LEN];
+} sundance_stats[] = {
+	{ "tx_multiple_collisions" },
+	{ "tx_single_collisions" },
+	{ "tx_late_collisions" },
+	{ "tx_deferred" },
+	{ "tx_deferred_excessive" },
+	{ "tx_aborted" },
+	{ "tx_bcasts" },
+	{ "rx_bcasts" },
+	{ "tx_mcasts" },
+	{ "rx_mcasts" },
+};
+
 static int check_if_running(struct net_device *dev)
 {
 	if (!netif_running(dev))

@@ -1624,6 +1665,42 @@ static void set_msglevel(struct net_device *dev, u32 val)
 	np->msg_enable = val;
 }
 
+static void get_strings(struct net_device *dev, u32 stringset,
+		u8 *data)
+{
+	if (stringset == ETH_SS_STATS)
+		memcpy(data, sundance_stats, sizeof(sundance_stats));
+}
+
+static int get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(sundance_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void get_ethtool_stats(struct net_device *dev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	int i = 0;
+
+	get_stats(dev);
+	data[i++] = np->xstats.tx_multiple_collisions;
+	data[i++] = np->xstats.tx_single_collisions;
+	data[i++] = np->xstats.tx_late_collisions;
+	data[i++] = np->xstats.tx_deferred;
+	data[i++] = np->xstats.tx_deferred_excessive;
+	data[i++] = np->xstats.tx_aborted;
+	data[i++] = np->xstats.tx_bcasts;
+	data[i++] = np->xstats.rx_bcasts;
+	data[i++] = np->xstats.tx_mcasts;
+	data[i++] = np->xstats.rx_mcasts;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.begin = check_if_running,
 	.get_drvinfo = get_drvinfo,

@@ -1633,6 +1710,9 @@ static const struct ethtool_ops ethtool_ops = {
 	.get_link = get_link,
 	.get_msglevel = get_msglevel,
 	.set_msglevel = set_msglevel,
+	.get_strings = get_strings,
+	.get_sset_count = get_sset_count,
+	.get_ethtool_stats = get_ethtool_stats,
 };
 
 static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
Signature · 1 line
1.7.0