Merge branch 'net-Extend-availability-of-PHY-statistics'

Florian Fainelli says:

====================
net: Extend availability of PHY statistics

This patch series adds support for retrieving PHY statistics with DSA switches
when the CPU port uses a PHY to PHY connection (as opposed to MAC to MAC).
To get there a number of things are done:

- first we move the code dealing with PHY statistics outside of net/core/ethtool.c
  and create helper functions since the same code will be reused
- then we allow network device drivers to provide an ethtool_get_phy_stats callback
  when the standard PHY library helpers are not suitable
- we update the DSA functions dealing with ethtool operations to get passed a
  stringset instead of assuming ETH_SS_STATS like they currently do
- then we provide a set of standard helpers within DSA as a framework and add
  the plumbing to allow retrieving the PHY statistics of the CPU port(s)
- finally plug support for retrieving such PHY statistics with the b53 driver

Changes in v3:

- retrict the b53 change to 539x and 531x5 series of switches
- added a change to dsa_loop.c to help test the feature

Changes in v2:

- got actual testing when the DSA master network device has a PHY that
  already provides statistics (thanks Nikita!)

- fixed the kbuild error reported when CONFIG_PHYLIB=n

- removed the checking of ops which is redundant and not needed
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-04-27 11:53:04 -04:00
commit 21fca6e01b
17 changed files with 369 additions and 87 deletions

View file

@ -806,16 +806,39 @@ static unsigned int b53_get_mib_size(struct b53_device *dev)
return B53_MIBS_SIZE;
}
void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port)
{
/* These ports typically do not have built-in PHYs */
switch (port) {
case B53_CPU_PORT_25:
case 7:
case B53_CPU_PORT:
return NULL;
}
return mdiobus_get_phy(ds->slave_mii_bus, port);
}
void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t *data)
{
struct b53_device *dev = ds->priv;
const struct b53_mib_desc *mibs = b53_get_mib(dev);
unsigned int mib_size = b53_get_mib_size(dev);
struct phy_device *phydev;
unsigned int i;
for (i = 0; i < mib_size; i++)
strlcpy(data + i * ETH_GSTRING_LEN,
mibs[i].name, ETH_GSTRING_LEN);
if (stringset == ETH_SS_STATS) {
for (i = 0; i < mib_size; i++)
strlcpy(data + i * ETH_GSTRING_LEN,
mibs[i].name, ETH_GSTRING_LEN);
} else if (stringset == ETH_SS_PHY_STATS) {
phydev = b53_get_phy_device(ds, port);
if (!phydev)
return;
phy_ethtool_get_strings(phydev, data);
}
}
EXPORT_SYMBOL(b53_get_strings);
@ -852,11 +875,34 @@ void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data)
}
EXPORT_SYMBOL(b53_get_ethtool_stats);
int b53_get_sset_count(struct dsa_switch *ds, int port)
void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data)
{
struct phy_device *phydev;
phydev = b53_get_phy_device(ds, port);
if (!phydev)
return;
phy_ethtool_get_stats(phydev, NULL, data);
}
EXPORT_SYMBOL(b53_get_ethtool_phy_stats);
int b53_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
struct b53_device *dev = ds->priv;
struct phy_device *phydev;
return b53_get_mib_size(dev);
if (sset == ETH_SS_STATS) {
return b53_get_mib_size(dev);
} else if (sset == ETH_SS_PHY_STATS) {
phydev = b53_get_phy_device(ds, port);
if (!phydev)
return 0;
return phy_ethtool_get_sset_count(phydev);
}
return 0;
}
EXPORT_SYMBOL(b53_get_sset_count);
@ -1477,7 +1523,7 @@ void b53_br_fast_age(struct dsa_switch *ds, int port)
}
EXPORT_SYMBOL(b53_br_fast_age);
static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port)
static bool b53_possible_cpu_port(struct dsa_switch *ds, int port)
{
/* Broadcom switches will accept enabling Broadcom tags on the
* following ports: 5, 7 and 8, any other port is not supported
@ -1489,10 +1535,19 @@ static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port)
return true;
}
dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n", port);
return false;
}
static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port)
{
bool ret = b53_possible_cpu_port(ds, port);
if (!ret)
dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n",
port);
return ret;
}
enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port)
{
struct b53_device *dev = ds->priv;
@ -1650,6 +1705,7 @@ static const struct dsa_switch_ops b53_switch_ops = {
.get_strings = b53_get_strings,
.get_ethtool_stats = b53_get_ethtool_stats,
.get_sset_count = b53_get_sset_count,
.get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
.phy_read = b53_phy_read16,
.phy_write = b53_phy_write16,
.adjust_link = b53_adjust_link,
@ -1954,6 +2010,15 @@ static int b53_switch_init(struct b53_device *dev)
dev->num_ports = dev->cpu_port + 1;
dev->enabled_ports |= BIT(dev->cpu_port);
/* Include non standard CPU port built-in PHYs to be probed */
if (is539x(dev) || is531x5(dev)) {
for (i = 0; i < dev->num_ports; i++) {
if (!(dev->ds->phys_mii_mask & BIT(i)) &&
!b53_possible_cpu_port(dev->ds, i))
dev->ds->phys_mii_mask |= BIT(i);
}
}
dev->ports = devm_kzalloc(dev->dev,
sizeof(struct b53_port) * dev->num_ports,
GFP_KERNEL);

View file

@ -286,9 +286,11 @@ static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
/* Exported functions towards other drivers */
void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port);
int b53_configure_vlan(struct dsa_switch *ds);
void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data);
void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t *data);
void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data);
int b53_get_sset_count(struct dsa_switch *ds, int port);
int b53_get_sset_count(struct dsa_switch *ds, int port, int sset);
void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data);
int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge);
void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *bridge);
void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state);

View file

@ -859,6 +859,7 @@ static const struct dsa_switch_ops bcm_sf2_ops = {
.get_strings = b53_get_strings,
.get_ethtool_stats = b53_get_ethtool_stats,
.get_sset_count = b53_get_sset_count,
.get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
.get_phy_flags = bcm_sf2_sw_get_phy_flags,
.adjust_link = bcm_sf2_sw_adjust_link,
.fixed_link_update = bcm_sf2_sw_fixed_link_update,

View file

@ -86,16 +86,23 @@ static int dsa_loop_setup(struct dsa_switch *ds)
return 0;
}
static int dsa_loop_get_sset_count(struct dsa_switch *ds, int port)
static int dsa_loop_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
if (sset != ETH_SS_STATS && sset != ETH_SS_PHY_STATS)
return 0;
return __DSA_LOOP_CNT_MAX;
}
static void dsa_loop_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
static void dsa_loop_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data)
{
struct dsa_loop_priv *ps = ds->priv;
unsigned int i;
if (stringset != ETH_SS_STATS && stringset != ETH_SS_PHY_STATS)
return;
for (i = 0; i < __DSA_LOOP_CNT_MAX; i++)
memcpy(data + i * ETH_GSTRING_LEN,
ps->ports[port].mib[i].name, ETH_GSTRING_LEN);
@ -256,6 +263,7 @@ static const struct dsa_switch_ops dsa_loop_driver = {
.get_strings = dsa_loop_get_strings,
.get_ethtool_stats = dsa_loop_get_ethtool_stats,
.get_sset_count = dsa_loop_get_sset_count,
.get_ethtool_phy_stats = dsa_loop_get_ethtool_stats,
.phy_read = dsa_loop_phy_read,
.phy_write = dsa_loop_phy_write,
.port_bridge_join = dsa_loop_port_bridge_join,

View file

@ -977,10 +977,14 @@ static const struct lan9303_mib_desc lan9303_mib[] = {
{ .offset = LAN9303_MAC_TX_LATECOL_0, .name = "TxLateCol", },
};
static void lan9303_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
static void lan9303_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data)
{
unsigned int u;
if (stringset != ETH_SS_STATS)
return;
for (u = 0; u < ARRAY_SIZE(lan9303_mib); u++) {
strncpy(data + u * ETH_GSTRING_LEN, lan9303_mib[u].name,
ETH_GSTRING_LEN);
@ -1007,8 +1011,11 @@ static void lan9303_get_ethtool_stats(struct dsa_switch *ds, int port,
}
}
static int lan9303_get_sset_count(struct dsa_switch *ds, int port)
static int lan9303_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
if (sset != ETH_SS_STATS)
return 0;
return ARRAY_SIZE(lan9303_mib);
}

View file

@ -439,15 +439,22 @@ static void ksz_disable_port(struct dsa_switch *ds, int port,
ksz_port_cfg(dev, port, REG_PORT_CTRL_0, PORT_MAC_LOOPBACK, true);
}
static int ksz_sset_count(struct dsa_switch *ds, int port)
static int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
{
if (sset != ETH_SS_STATS)
return 0;
return TOTAL_SWITCH_COUNTER_NUM;
}
static void ksz_get_strings(struct dsa_switch *ds, int port, uint8_t *buf)
static void ksz_get_strings(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *buf)
{
int i;
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < TOTAL_SWITCH_COUNTER_NUM; i++) {
memcpy(buf + i * ETH_GSTRING_LEN, mib_names[i].string,
ETH_GSTRING_LEN);

View file

@ -573,10 +573,14 @@ static int mt7530_phy_write(struct dsa_switch *ds, int port, int regnum,
}
static void
mt7530_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset,
uint8_t *data)
{
int i;
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < ARRAY_SIZE(mt7530_mib); i++)
strncpy(data + i * ETH_GSTRING_LEN, mt7530_mib[i].name,
ETH_GSTRING_LEN);
@ -604,8 +608,11 @@ mt7530_get_ethtool_stats(struct dsa_switch *ds, int port,
}
static int
mt7530_get_sset_count(struct dsa_switch *ds, int port)
mt7530_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
if (sset != ETH_SS_STATS)
return 0;
return ARRAY_SIZE(mt7530_mib);
}

View file

@ -742,11 +742,14 @@ static void mv88e6xxx_atu_vtu_get_strings(uint8_t *data)
}
static void mv88e6xxx_get_strings(struct dsa_switch *ds, int port,
uint8_t *data)
u32 stringset, uint8_t *data)
{
struct mv88e6xxx_chip *chip = ds->priv;
int count = 0;
if (stringset != ETH_SS_STATS)
return;
mutex_lock(&chip->reg_lock);
if (chip->info->ops->stats_get_strings)
@ -789,12 +792,15 @@ static int mv88e6320_stats_get_sset_count(struct mv88e6xxx_chip *chip)
STATS_TYPE_BANK1);
}
static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
struct mv88e6xxx_chip *chip = ds->priv;
int serdes_count = 0;
int count = 0;
if (sset != ETH_SS_STATS)
return 0;
mutex_lock(&chip->reg_lock);
if (chip->info->ops->stats_get_sset_count)
count = chip->info->ops->stats_get_sset_count(chip);

View file

@ -600,10 +600,13 @@ qca8k_phy_write(struct dsa_switch *ds, int phy, int regnum, u16 val)
}
static void
qca8k_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data)
{
int i;
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < ARRAY_SIZE(ar8327_mib); i++)
strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
ETH_GSTRING_LEN);
@ -631,8 +634,11 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
}
static int
qca8k_get_sset_count(struct dsa_switch *ds, int port)
qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
{
if (sset != ETH_SS_STATS)
return 0;
return ARRAY_SIZE(ar8327_mib);
}

View file

@ -1277,3 +1277,51 @@ int phy_ethtool_nway_reset(struct net_device *ndev)
return phy_restart_aneg(phydev);
}
EXPORT_SYMBOL(phy_ethtool_nway_reset);
int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
{
if (!phydev->drv)
return -EIO;
mutex_lock(&phydev->lock);
phydev->drv->get_strings(phydev, data);
mutex_unlock(&phydev->lock);
return 0;
}
EXPORT_SYMBOL(phy_ethtool_get_strings);
int phy_ethtool_get_sset_count(struct phy_device *phydev)
{
int ret;
if (!phydev->drv)
return -EIO;
if (phydev->drv->get_sset_count &&
phydev->drv->get_strings &&
phydev->drv->get_stats) {
mutex_lock(&phydev->lock);
ret = phydev->drv->get_sset_count(phydev);
mutex_unlock(&phydev->lock);
return ret;
}
return -EOPNOTSUPP;
}
EXPORT_SYMBOL(phy_ethtool_get_sset_count);
int phy_ethtool_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data)
{
if (!phydev->drv)
return -EIO;
mutex_lock(&phydev->lock);
phydev->drv->get_stats(phydev, stats, data);
mutex_unlock(&phydev->lock);
return 0;
}
EXPORT_SYMBOL(phy_ethtool_get_stats);

View file

@ -312,6 +312,9 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
* by kernel. Returns a negative error code or zero.
* @get_fecparam: Get the network device Forward Error Correction parameters.
* @set_fecparam: Set the network device Forward Error Correction parameters.
* @get_ethtool_phy_stats: Return extended statistics about the PHY device.
* This is only useful if the device maintains PHY statistics and
* cannot use the standard PHY library helpers.
*
* All operations are optional (i.e. the function pointer may be set
* to %NULL) and callers must take this into account. Callers must
@ -407,5 +410,7 @@ struct ethtool_ops {
struct ethtool_fecparam *);
int (*set_fecparam)(struct net_device *,
struct ethtool_fecparam *);
void (*get_ethtool_phy_stats)(struct net_device *,
struct ethtool_stats *, u64 *);
};
#endif /* _LINUX_ETHTOOL_H */

View file

@ -1066,6 +1066,26 @@ int phy_ethtool_nway_reset(struct net_device *ndev);
#if IS_ENABLED(CONFIG_PHYLIB)
int __init mdio_bus_init(void);
void mdio_bus_exit(void);
int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data);
int phy_ethtool_get_sset_count(struct phy_device *phydev);
int phy_ethtool_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data);
#else
int phy_ethtool_get_strings(struct phy_device *phydev, u8 *data)
{
return -EOPNOTSUPP;
}
int phy_ethtool_get_sset_count(struct phy_device *phydev)
{
return -EOPNOTSUPP;
}
int phy_ethtool_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data)
{
return -EOPNOTSUPP;
}
#endif
extern struct bus_type mdio_bus_type;

View file

@ -356,10 +356,13 @@ struct dsa_switch_ops {
/*
* ethtool hardware statistics.
*/
void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data);
void (*get_strings)(struct dsa_switch *ds, int port,
u32 stringset, uint8_t *data);
void (*get_ethtool_stats)(struct dsa_switch *ds,
int port, uint64_t *data);
int (*get_sset_count)(struct dsa_switch *ds, int port);
int (*get_sset_count)(struct dsa_switch *ds, int port, int sset);
void (*get_ethtool_phy_stats)(struct dsa_switch *ds,
int port, uint64_t *data);
/*
* ethtool Wake-on-LAN
@ -588,4 +591,9 @@ static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
#define BRCM_TAG_GET_PORT(v) ((v) >> 8)
#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_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
int dsa_port_get_phy_sset_count(struct dsa_port *dp);
#endif

View file

@ -211,23 +211,6 @@ static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
return ret;
}
static int phy_get_sset_count(struct phy_device *phydev)
{
int ret;
if (phydev->drv->get_sset_count &&
phydev->drv->get_strings &&
phydev->drv->get_stats) {
mutex_lock(&phydev->lock);
ret = phydev->drv->get_sset_count(phydev);
mutex_unlock(&phydev->lock);
return ret;
}
return -EOPNOTSUPP;
}
static int __ethtool_get_sset_count(struct net_device *dev, int sset)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
@ -244,12 +227,9 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
if (sset == ETH_SS_PHY_TUNABLES)
return ARRAY_SIZE(phy_tunable_strings);
if (sset == ETH_SS_PHY_STATS) {
if (dev->phydev)
return phy_get_sset_count(dev->phydev);
else
return -EOPNOTSUPP;
}
if (sset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
return phy_ethtool_get_sset_count(dev->phydev);
if (ops->get_sset_count && ops->get_strings)
return ops->get_sset_count(dev, sset);
@ -272,17 +252,10 @@ static void __ethtool_get_strings(struct net_device *dev,
memcpy(data, tunable_strings, sizeof(tunable_strings));
else if (stringset == ETH_SS_PHY_TUNABLES)
memcpy(data, phy_tunable_strings, sizeof(phy_tunable_strings));
else if (stringset == ETH_SS_PHY_STATS) {
struct phy_device *phydev = dev->phydev;
if (phydev) {
mutex_lock(&phydev->lock);
phydev->drv->get_strings(phydev, data);
mutex_unlock(&phydev->lock);
} else {
return;
}
} else
else if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
phy_ethtool_get_strings(dev->phydev, data);
else
/* ops->get_strings is valid because checked earlier */
ops->get_strings(dev, stringset, data);
}
@ -1994,15 +1967,19 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
{
struct ethtool_stats stats;
const struct ethtool_ops *ops = dev->ethtool_ops;
struct phy_device *phydev = dev->phydev;
struct ethtool_stats stats;
u64 *data;
int ret, n_stats;
if (!phydev)
if (!phydev && (!ops->get_ethtool_phy_stats || !ops->get_sset_count))
return -EOPNOTSUPP;
n_stats = phy_get_sset_count(phydev);
if (dev->phydev && !ops->get_ethtool_phy_stats)
n_stats = phy_ethtool_get_sset_count(dev->phydev);
else
n_stats = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
if (n_stats < 0)
return n_stats;
if (n_stats > S32_MAX / sizeof(u64))
@ -2017,9 +1994,13 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
if (n_stats && !data)
return -ENOMEM;
mutex_lock(&phydev->lock);
phydev->drv->get_stats(phydev, &stats, data);
mutex_unlock(&phydev->lock);
if (dev->phydev && !ops->get_ethtool_phy_stats) {
ret = phy_ethtool_get_stats(dev->phydev, &stats, data);
if (ret < 0)
return ret;
} else {
ops->get_ethtool_phy_stats(dev, &stats, data);
}
ret = -EFAULT;
if (copy_to_user(useraddr, &stats, sizeof(stats)))

View file

@ -22,7 +22,7 @@ static void dsa_master_get_ethtool_stats(struct net_device *dev,
int port = cpu_dp->index;
int count = 0;
if (ops && ops->get_sset_count && ops->get_ethtool_stats) {
if (ops->get_sset_count && ops->get_ethtool_stats) {
count = ops->get_sset_count(dev, ETH_SS_STATS);
ops->get_ethtool_stats(dev, stats, data);
}
@ -31,6 +31,32 @@ static void dsa_master_get_ethtool_stats(struct net_device *dev,
ds->ops->get_ethtool_stats(ds, port, data + count);
}
static void dsa_master_get_ethtool_phy_stats(struct net_device *dev,
struct ethtool_stats *stats,
uint64_t *data)
{
struct dsa_port *cpu_dp = dev->dsa_ptr;
const struct ethtool_ops *ops = cpu_dp->orig_ethtool_ops;
struct dsa_switch *ds = cpu_dp->ds;
int port = cpu_dp->index;
int count = 0;
if (dev->phydev && !ops->get_ethtool_phy_stats) {
count = phy_ethtool_get_sset_count(dev->phydev);
if (count >= 0)
phy_ethtool_get_stats(dev->phydev, stats, data);
} else if (ops->get_sset_count && ops->get_ethtool_phy_stats) {
count = ops->get_sset_count(dev, ETH_SS_PHY_STATS);
ops->get_ethtool_phy_stats(dev, stats, data);
}
if (count < 0)
count = 0;
if (ds->ops->get_ethtool_phy_stats)
ds->ops->get_ethtool_phy_stats(ds, port, data + count);
}
static int dsa_master_get_sset_count(struct net_device *dev, int sset)
{
struct dsa_port *cpu_dp = dev->dsa_ptr;
@ -38,11 +64,17 @@ static int dsa_master_get_sset_count(struct net_device *dev, int sset)
struct dsa_switch *ds = cpu_dp->ds;
int count = 0;
if (ops && ops->get_sset_count)
count += ops->get_sset_count(dev, sset);
if (sset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats)
count = phy_ethtool_get_sset_count(dev->phydev);
else if (ops->get_sset_count)
count = ops->get_sset_count(dev, sset);
if (sset == ETH_SS_STATS && ds->ops->get_sset_count)
count += ds->ops->get_sset_count(ds, cpu_dp->index);
if (count < 0)
count = 0;
if (ds->ops->get_sset_count)
count += ds->ops->get_sset_count(ds, cpu_dp->index, sset);
return count;
}
@ -64,19 +96,28 @@ static void dsa_master_get_strings(struct net_device *dev, uint32_t stringset,
/* We do not want to be NULL-terminated, since this is a prefix */
pfx[sizeof(pfx) - 1] = '_';
if (ops && ops->get_sset_count && ops->get_strings) {
mcount = ops->get_sset_count(dev, ETH_SS_STATS);
if (stringset == ETH_SS_PHY_STATS && dev->phydev &&
!ops->get_ethtool_phy_stats) {
mcount = phy_ethtool_get_sset_count(dev->phydev);
if (mcount < 0)
mcount = 0;
else
phy_ethtool_get_strings(dev->phydev, data);
} else if (ops->get_sset_count && ops->get_strings) {
mcount = ops->get_sset_count(dev, stringset);
if (mcount < 0)
mcount = 0;
ops->get_strings(dev, stringset, data);
}
if (stringset == ETH_SS_STATS && ds->ops->get_strings) {
if (ds->ops->get_strings) {
ndata = data + mcount * len;
/* This function copies ETH_GSTRINGS_LEN bytes, we will mangle
* the output after to prepend our CPU port prefix we
* constructed earlier
*/
ds->ops->get_strings(ds, port, ndata);
count = ds->ops->get_sset_count(ds, port);
ds->ops->get_strings(ds, port, stringset, ndata);
count = ds->ops->get_sset_count(ds, port, stringset);
for (i = 0; i < count; i++) {
memmove(ndata + (i * len + sizeof(pfx)),
ndata + i * len, len - sizeof(pfx));
@ -102,6 +143,7 @@ static int dsa_master_ethtool_setup(struct net_device *dev)
ops->get_sset_count = dsa_master_get_sset_count;
ops->get_ethtool_stats = dsa_master_get_ethtool_stats;
ops->get_strings = dsa_master_get_strings;
ops->get_ethtool_phy_stats = dsa_master_get_ethtool_phy_stats;
dev->ethtool_ops = ops;

View file

@ -273,24 +273,37 @@ int dsa_port_vlan_del(struct dsa_port *dp,
return 0;
}
static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp)
{
struct device_node *phy_dn;
struct phy_device *phydev;
phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0);
if (!phy_dn)
return NULL;
phydev = of_phy_find_device(phy_dn);
if (!phydev) {
of_node_put(phy_dn);
return ERR_PTR(-EPROBE_DEFER);
}
return phydev;
}
static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable)
{
struct device_node *port_dn = dp->dn;
struct device_node *phy_dn;
struct dsa_switch *ds = dp->ds;
struct phy_device *phydev;
int port = dp->index;
int err = 0;
phy_dn = of_parse_phandle(port_dn, "phy-handle", 0);
if (!phy_dn)
phydev = dsa_port_get_phy_device(dp);
if (!phydev)
return 0;
phydev = of_phy_find_device(phy_dn);
if (!phydev) {
err = -EPROBE_DEFER;
goto err_put_of;
}
if (IS_ERR(phydev))
return PTR_ERR(phydev);
if (enable) {
err = genphy_config_init(phydev);
@ -317,8 +330,6 @@ static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable)
err_put_dev:
put_device(&phydev->mdio.dev);
err_put_of:
of_node_put(phy_dn);
return err;
}
@ -372,3 +383,60 @@ void dsa_port_link_unregister_of(struct dsa_port *dp)
else
dsa_port_setup_phy_of(dp, false);
}
int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data)
{
struct phy_device *phydev;
int ret = -EOPNOTSUPP;
if (of_phy_is_fixed_link(dp->dn))
return ret;
phydev = dsa_port_get_phy_device(dp);
if (IS_ERR_OR_NULL(phydev))
return ret;
ret = phy_ethtool_get_strings(phydev, data);
put_device(&phydev->mdio.dev);
return ret;
}
EXPORT_SYMBOL_GPL(dsa_port_get_phy_strings);
int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data)
{
struct phy_device *phydev;
int ret = -EOPNOTSUPP;
if (of_phy_is_fixed_link(dp->dn))
return ret;
phydev = dsa_port_get_phy_device(dp);
if (IS_ERR_OR_NULL(phydev))
return ret;
ret = phy_ethtool_get_stats(phydev, NULL, data);
put_device(&phydev->mdio.dev);
return ret;
}
EXPORT_SYMBOL_GPL(dsa_port_get_ethtool_phy_stats);
int dsa_port_get_phy_sset_count(struct dsa_port *dp)
{
struct phy_device *phydev;
int ret = -EOPNOTSUPP;
if (of_phy_is_fixed_link(dp->dn))
return ret;
phydev = dsa_port_get_phy_device(dp);
if (IS_ERR_OR_NULL(phydev))
return ret;
ret = phy_ethtool_get_sset_count(phydev);
put_device(&phydev->mdio.dev);
return ret;
}
EXPORT_SYMBOL_GPL(dsa_port_get_phy_sset_count);

View file

@ -560,7 +560,8 @@ static void dsa_slave_get_strings(struct net_device *dev,
strncpy(data + 2 * len, "rx_packets", len);
strncpy(data + 3 * len, "rx_bytes", len);
if (ds->ops->get_strings)
ds->ops->get_strings(ds, dp->index, data + 4 * len);
ds->ops->get_strings(ds, dp->index, stringset,
data + 4 * len);
}
}
@ -605,7 +606,7 @@ static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
count = 4;
if (ds->ops->get_sset_count)
count += ds->ops->get_sset_count(ds, dp->index);
count += ds->ops->get_sset_count(ds, dp->index, sset);
return count;
}