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generic: provide get_port_stats() on ar8xxx switches

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This patch provides a generic switch_dev_ops 'get_port_stats()' callback by
taping into the relevant port MIB counters.

The implementation uses a generic callback that select the correct MIB counter
index based on chip version.

This callback is used by swconfig_leds led trigger to blink LEDs with port
network traffic.

Signed-off-by: Thibaut VARENE <hacks@slashdirt.org>
This commit is contained in:
Thibaut VARENE 2017-08-04 12:28:23 +02:00 committed by John Crispin
parent 2b3ab0208e
commit 4d8a66d934
3 changed files with 61 additions and 0 deletions
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57
target/linux/generic/files/drivers/net/phy/ar8216.c
View File

@ -49,6 +49,12 @@ extern const struct ar8xxx_chip ar8337_chip;
.name = (_n), \
}
#define AR8216_MIB_RXB_ID 14 /* RxGoodByte */
#define AR8216_MIB_TXB_ID 29 /* TxByte */
#define AR8236_MIB_RXB_ID 15 /* RxGoodByte */
#define AR8236_MIB_TXB_ID 31 /* TxByte */
static const struct ar8xxx_mib_desc ar8216_mibs[] = {
MIB_DESC(1, AR8216_STATS_RXBROAD, "RxBroad"),
MIB_DESC(1, AR8216_STATS_RXPAUSE, "RxPause"),
@ -1581,6 +1587,56 @@ ar8xxx_sw_set_flush_port_arl_table(struct switch_dev *dev,
return ret;
}
int
ar8xxx_sw_get_port_stats(struct switch_dev *dev, int port,
struct switch_port_stats *stats)
{
struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
u64 *mib_stats;
int ret;
int mib_txb_id, mib_rxb_id;
if (!ar8xxx_has_mib_counters(priv))
return -EOPNOTSUPP;
if (port >= dev->ports)
return -EINVAL;
switch (priv->chip_ver) {
case AR8XXX_VER_AR8216:
mib_txb_id = AR8216_MIB_TXB_ID;
mib_rxb_id = AR8216_MIB_RXB_ID;
break;
case AR8XXX_VER_AR8236:
case AR8XXX_VER_AR8316:
case AR8XXX_VER_AR8327:
case AR8XXX_VER_AR8337:
mib_txb_id = AR8236_MIB_TXB_ID;
mib_rxb_id = AR8236_MIB_RXB_ID;
break;
default:
return -EOPNOTSUPP;
}
mutex_lock(&priv->mib_lock);
ret = ar8xxx_mib_capture(priv);
if (ret)
goto unlock;
ar8xxx_mib_fetch_port_stat(priv, port, false);
mib_stats = &priv->mib_stats[port * priv->chip->num_mibs];
stats->tx_bytes = mib_stats[mib_txb_id];
stats->rx_bytes = mib_stats[mib_rxb_id];
ret = 0;
unlock:
mutex_unlock(&priv->mib_lock);
return ret;
}
static const struct switch_attr ar8xxx_sw_attr_globals[] = {
{
.type = SWITCH_TYPE_INT,
@ -1696,6 +1752,7 @@ static const struct switch_dev_ops ar8xxx_sw_ops = {
.apply_config = ar8xxx_sw_hw_apply,
.reset_switch = ar8xxx_sw_reset_switch,
.get_port_link = ar8xxx_sw_get_port_link,
.get_port_stats = ar8xxx_sw_get_port_stats,
};
static const struct ar8xxx_chip ar8216_chip = {

3
target/linux/generic/files/drivers/net/phy/ar8216.h
View File

@ -566,6 +566,9 @@ ar8xxx_sw_set_flush_port_arl_table(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val);
int
ar8xxx_sw_get_port_stats(struct switch_dev *dev, int port,
struct switch_port_stats *stats);
int
ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val);
static inline struct ar8xxx_priv *

1
target/linux/generic/files/drivers/net/phy/ar8327.c
View File

@ -1411,6 +1411,7 @@ static const struct switch_dev_ops ar8327_sw_ops = {
.apply_config = ar8327_sw_hw_apply,
.reset_switch = ar8xxx_sw_reset_switch,
.get_port_link = ar8xxx_sw_get_port_link,
.get_port_stats = ar8xxx_sw_get_port_stats,
};
const struct ar8xxx_chip ar8327_chip = {