[RFC net-next 1/5] net: phy: Pass stringset argument to ethtool operations

From: Florian Fainelli
Date: Fri Apr 27 2018 - 20:33:34 EST

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In preparation for returning a different type of strings other than
ETH_SS_STATS update the PHY drivers, helpers and consumers of these
functions.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
drivers/net/dsa/b53/b53_common.c | 4 ++--
drivers/net/phy/bcm-phy-lib.c | 12 +++++++++---
drivers/net/phy/bcm-phy-lib.h | 4 ++--
drivers/net/phy/bcm7xxx.c | 6 ++++--
drivers/net/phy/broadcom.c | 6 ++++--
drivers/net/phy/marvell.c | 11 +++++++++--
drivers/net/phy/micrel.c | 11 +++++++++--
drivers/net/phy/smsc.c | 10 ++++++++--
include/linux/phy.h | 14 ++++++++------
include/net/dsa.h | 4 ++--
net/core/ethtool.c | 7 ++++---
net/dsa/master.c | 9 +++++----
net/dsa/port.c | 8 ++++----
13 files changed, 70 insertions(+), 36 deletions(-)

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 9f561fe505cb..8201e8f5c028 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -837,7 +837,7 @@ void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
if (!phydev)
return;

- phy_ethtool_get_strings(phydev, data);
+ phy_ethtool_get_strings(phydev, stringset, data);
}
}
EXPORT_SYMBOL(b53_get_strings);
@@ -899,7 +899,7 @@ int b53_get_sset_count(struct dsa_switch *ds, int port, int sset)
if (!phydev)
return 0;

- return phy_ethtool_get_sset_count(phydev);
+ return phy_ethtool_get_sset_count(phydev, sset);
}

return 0;
diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c
index 0876aec7328c..e797e0863895 100644
--- a/drivers/net/phy/bcm-phy-lib.c
+++ b/drivers/net/phy/bcm-phy-lib.c
@@ -330,16 +330,22 @@ static const struct bcm_phy_hw_stat bcm_phy_hw_stats[] = {
{ "phy_remote_rcv_nok", MII_BRCM_CORE_BASE14, 0, 8 },
};

-int bcm_phy_get_sset_count(struct phy_device *phydev)
+int bcm_phy_get_sset_count(struct phy_device *phydev, int sset)
{
- return ARRAY_SIZE(bcm_phy_hw_stats);
+ if (sset == ETH_SS_PHY_STATS)
+ return ARRAY_SIZE(bcm_phy_hw_stats);
+
+ return -EOPNOTSUPP;
}
EXPORT_SYMBOL_GPL(bcm_phy_get_sset_count);

-void bcm_phy_get_strings(struct phy_device *phydev, u8 *data)
+void bcm_phy_get_strings(struct phy_device *phydev, u32 stringset, u8 *data)
{
unsigned int i;

+ if (stringset != ETH_SS_PHY_STATS)
+ return;
+
for (i = 0; i < ARRAY_SIZE(bcm_phy_hw_stats); i++)
strlcpy(data + i * ETH_GSTRING_LEN,
bcm_phy_hw_stats[i].string, ETH_GSTRING_LEN);
diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h
index 7c73808cbbde..bebcfe106283 100644
--- a/drivers/net/phy/bcm-phy-lib.h
+++ b/drivers/net/phy/bcm-phy-lib.h
@@ -42,8 +42,8 @@ int bcm_phy_downshift_get(struct phy_device *phydev, u8 *count);

int bcm_phy_downshift_set(struct phy_device *phydev, u8 count);

-int bcm_phy_get_sset_count(struct phy_device *phydev);
-void bcm_phy_get_strings(struct phy_device *phydev, u8 *data);
+int bcm_phy_get_sset_count(struct phy_device *phydev, int sset);
+void bcm_phy_get_strings(struct phy_device *phydev, u32 stringset, u8 *data);
void bcm_phy_get_stats(struct phy_device *phydev, u64 *shadow,
struct ethtool_stats *stats, u64 *data);

diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c
index 29b1c88b55cc..1835af147eea 100644
--- a/drivers/net/phy/bcm7xxx.c
+++ b/drivers/net/phy/bcm7xxx.c
@@ -587,6 +587,9 @@ static void bcm7xxx_28nm_get_phy_stats(struct phy_device *phydev,
static int bcm7xxx_28nm_probe(struct phy_device *phydev)
{
struct bcm7xxx_phy_priv *priv;
+ int count;
+
+ count = bcm_phy_get_sset_count(phydev, ETH_SS_PHY_STATS);

priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -594,8 +597,7 @@ static int bcm7xxx_28nm_probe(struct phy_device *phydev)

phydev->priv = priv;

- priv->stats = devm_kcalloc(&phydev->mdio.dev,
- bcm_phy_get_sset_count(phydev), sizeof(u64),
+ priv->stats = devm_kcalloc(&phydev->mdio.dev, count, sizeof(u64),
GFP_KERNEL);
if (!priv->stats)
return -ENOMEM;
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 3bb6b66dc7bf..dd909799baf0 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -547,6 +547,9 @@ struct bcm53xx_phy_priv {
static int bcm53xx_phy_probe(struct phy_device *phydev)
{
struct bcm53xx_phy_priv *priv;
+ int count;
+
+ count = bcm_phy_get_sset_count(phydev, ETH_SS_PHY_STATS);

priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -554,8 +557,7 @@ static int bcm53xx_phy_probe(struct phy_device *phydev)

phydev->priv = priv;

- priv->stats = devm_kcalloc(&phydev->mdio.dev,
- bcm_phy_get_sset_count(phydev), sizeof(u64),
+ priv->stats = devm_kcalloc(&phydev->mdio.dev, count, sizeof(u64),
GFP_KERNEL);
if (!priv->stats)
return -ENOMEM;
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index b8f57e9b9379..cf962182297b 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1464,18 +1464,25 @@ static int m88e1318_set_wol(struct phy_device *phydev,
return phy_restore_page(phydev, oldpage, err);
}

-static int marvell_get_sset_count(struct phy_device *phydev)
+static int marvell_get_sset_count(struct phy_device *phydev, int sset)
{
+ if (sset != ETH_SS_PHY_STATS)
+ return -EOPNOTSUPP;
+
if (phydev->supported & SUPPORTED_FIBRE)
return ARRAY_SIZE(marvell_hw_stats);
else
return ARRAY_SIZE(marvell_hw_stats) - NB_FIBER_STATS;
}

-static void marvell_get_strings(struct phy_device *phydev, u8 *data)
+static void marvell_get_strings(struct phy_device *phydev, u32 stringset,
+ u8 *data)
{
int i;

+ if (stringset != ETH_SS_PHY_STATS)
+ return;
+
for (i = 0; i < ARRAY_SIZE(marvell_hw_stats); i++) {
strlcpy(data + i * ETH_GSTRING_LEN,
marvell_hw_stats[i].string, ETH_GSTRING_LEN);
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index de31c5170a5b..54f3e400a454 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -635,15 +635,22 @@ static int ksz8873mll_config_aneg(struct phy_device *phydev)
return 0;
}

-static int kszphy_get_sset_count(struct phy_device *phydev)
+static int kszphy_get_sset_count(struct phy_device *phydev, int sset)
{
+ if (sset != ETH_SS_PHY_STATS)
+ return -EOPNOTSUPP;
+
return ARRAY_SIZE(kszphy_hw_stats);
}

-static void kszphy_get_strings(struct phy_device *phydev, u8 *data)
+static void kszphy_get_strings(struct phy_device *phydev, u32 stringset,
+ u8 *data)
{
int i;

+ if (stringset != ETH_SS_PHY_STATS)
+ return;
+
for (i = 0; i < ARRAY_SIZE(kszphy_hw_stats); i++) {
strlcpy(data + i * ETH_GSTRING_LEN,
kszphy_hw_stats[i].string, ETH_GSTRING_LEN);
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index c328208388da..c1a4d4d0879d 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -153,15 +153,21 @@ static int lan87xx_read_status(struct phy_device *phydev)
return err;
}

-static int smsc_get_sset_count(struct phy_device *phydev)
+static int smsc_get_sset_count(struct phy_device *phydev, int sset)
{
+ if (sset != ETH_SS_PHY_STATS)
+ return -EOPNOTSUPP;
+
return ARRAY_SIZE(smsc_hw_stats);
}

-static void smsc_get_strings(struct phy_device *phydev, u8 *data)
+static void smsc_get_strings(struct phy_device *phydev, u32 stringset, u8 *data)
{
int i;

+ if (stringset != ETH_SS_PHY_STATS)
+ return;
+
for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++) {
strncpy(data + i * ETH_GSTRING_LEN,
smsc_hw_stats[i].string, ETH_GSTRING_LEN);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 073235e70442..deba0c11647f 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -647,8 +647,8 @@ struct phy_driver {
struct ethtool_eeprom *ee, u8 *data);

/* Get statistics from the phy using ethtool */
- int (*get_sset_count)(struct phy_device *dev);
- void (*get_strings)(struct phy_device *dev, u8 *data);
+ int (*get_sset_count)(struct phy_device *dev, int sset);
+ void (*get_strings)(struct phy_device *dev, u32 stringset, u8 *data);
void (*get_stats)(struct phy_device *dev,
struct ethtool_stats *stats, u64 *data);

@@ -1069,19 +1069,21 @@ void mdio_bus_exit(void);
#endif

/* Inline function for use within net/core/ethtool.c (built-in) */
-static inline int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
+static inline int phy_ethtool_get_strings(struct phy_device *phydev,
+ u32 stringset, u8 *data)
{
if (!phydev->drv)
return -EIO;

mutex_lock(&phydev->lock);
- phydev->drv->get_strings(phydev, data);
+ phydev->drv->get_strings(phydev, stringset, data);
mutex_unlock(&phydev->lock);

return 0;
}

-static inline int phy_ethtool_get_sset_count(struct phy_device *phydev)
+static inline int phy_ethtool_get_sset_count(struct phy_device *phydev,
+ int sset)
{
int ret;

@@ -1092,7 +1094,7 @@ static inline int phy_ethtool_get_sset_count(struct phy_device *phydev)
phydev->drv->get_strings &&
phydev->drv->get_stats) {
mutex_lock(&phydev->lock);
- ret = phydev->drv->get_sset_count(phydev);
+ ret = phydev->drv->get_sset_count(phydev, sset);
mutex_unlock(&phydev->lock);

return ret;
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 462e9741b210..528388cda0a0 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -592,8 +592,8 @@ static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
#define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff)

-int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data);
+int dsa_port_get_phy_strings(struct dsa_port *dp, u32 stringset, uint8_t *data);
int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
-int dsa_port_get_phy_sset_count(struct dsa_port *dp);
+int dsa_port_get_phy_sset_count(struct dsa_port *dp, int sset);

#endif
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index b849fdae7e87..0b9e2a44e1d1 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -229,7 +229,7 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)

if (sset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
- return phy_ethtool_get_sset_count(dev->phydev);
+ return phy_ethtool_get_sset_count(dev->phydev, sset);

if (ops->get_sset_count && ops->get_strings)
return ops->get_sset_count(dev, sset);
@@ -254,7 +254,7 @@ static void __ethtool_get_strings(struct net_device *dev,
memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings));
else if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
- phy_ethtool_get_strings(dev->phydev, data);
+ phy_ethtool_get_strings(dev->phydev, stringset, data);
else
/* ops->get_strings is valid because checked earlier */
ops->get_strings(dev, stringset, data);
@@ -1977,7 +1977,8 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
return -EOPNOTSUPP;

if (dev->phydev && !ops->get_ethtool_phy_stats)
- n_stats = phy_ethtool_get_sset_count(dev->phydev);
+ n_stats = phy_ethtool_get_sset_count(dev->phydev,
+ ETH_SS_PHY_STATS);
else
n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
if (n_stats < 0)
diff --git a/net/dsa/master.c b/net/dsa/master.c
index c90ee3227dea..4dbbaad2c8aa 100644
--- a/net/dsa/master.c
+++ b/net/dsa/master.c
@@ -42,7 +42,8 @@ static void dsa_master_get_ethtool_phy_stats(struct net_device *dev,
int count = 0;

if (dev->phydev && !ops->get_ethtool_phy_stats) {
- count = phy_ethtool_get_sset_count(dev->phydev);
+ count = phy_ethtool_get_sset_count(dev->phydev,
+ ETH_SS_PHY_STATS);
if (count >= 0)
phy_ethtool_get_stats(dev->phydev, stats, data);
} else if (ops->get_sset_count && ops->get_ethtool_phy_stats) {
@@ -66,7 +67,7 @@ static int dsa_master_get_sset_count(struct net_device *dev, int sset)

if (sset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
- count = phy_ethtool_get_sset_count(dev->phydev);
+ count = phy_ethtool_get_sset_count(dev->phydev, sset);
else if (ops->get_sset_count)
count = ops->get_sset_count(dev, sset);

@@ -98,11 +99,11 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset,

if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats) {
- mcount = phy_ethtool_get_sset_count(dev->phydev);
+ mcount = phy_ethtool_get_sset_count(dev->phydev, stringset);
if (mcount < 0)
mcount = 0;
else
- phy_ethtool_get_strings(dev->phydev, data);
+ phy_ethtool_get_strings(dev->phydev, stringset, data);
} else if (ops->get_sset_count && ops->get_strings) {
mcount = ops->get_sset_count(dev, stringset);
if (mcount < 0)
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 2413beb995be..4e836da4cdd3 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -384,7 +384,7 @@ void dsa_port_link_unregister_of(struct dsa_port *dp)
dsa_port_setup_phy_of(dp, false);
}

-int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data)
+int dsa_port_get_phy_strings(struct dsa_port *dp, u32 stringset, uint8_t *data)
{
struct phy_device *phydev;
int ret = -EOPNOTSUPP;
@@ -396,7 +396,7 @@ int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data)
if (IS_ERR_OR_NULL(phydev))
return ret;

- ret = phy_ethtool_get_strings(phydev, data);
+ ret = phy_ethtool_get_strings(phydev, stringset, data);
put_device(&phydev->mdio.dev);

return ret;
@@ -422,7 +422,7 @@ int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data)
}
EXPORT_SYMBOL_GPL(dsa_port_get_ethtool_phy_stats);

-int dsa_port_get_phy_sset_count(struct dsa_port *dp)
+int dsa_port_get_phy_sset_count(struct dsa_port *dp, int sset)
{
struct phy_device *phydev;
int ret = -EOPNOTSUPP;
@@ -434,7 +434,7 @@ int dsa_port_get_phy_sset_count(struct dsa_port *dp)
if (IS_ERR_OR_NULL(phydev))
return ret;

- ret = phy_ethtool_get_sset_count(phydev);
+ ret = phy_ethtool_get_sset_count(phydev, sset);
put_device(&phydev->mdio.dev);

return ret;
--
2.14.1

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