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net/mlx5e: Add per priority group to PPort counters 

Expose counters providing information for each priority level (PCP) through
ethtool -S option and DCBNL.
This includes rx/tx bytes, frames, and pause counters.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gal Pressman 2016-04-24 22:51:49 +03:00 committed by David S. Miller
parent 8075cb7238
commit cf678570d5
4 changed files with 93 additions and 4 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
View File

@ -174,8 +174,14 @@ static int mlx5e_dcbnl_ieee_getpfc(struct net_device *dev,
{
struct mlx5e_priv *priv = netdev_priv(dev);
struct mlx5_core_dev *mdev = priv->mdev;
struct mlx5e_pport_stats *pstats = &priv->stats.pport;
int i;
pfc->pfc_cap = mlx5_max_tc(mdev) + 1;
for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
pfc->requests[i] = PPORT_PER_PRIO_GET(pstats, i, tx_pause);
pfc->indications[i] = PPORT_PER_PRIO_GET(pstats, i, rx_pause);
}
return mlx5_query_port_pfc(mdev, &pfc->pfc_en, NULL);
}

51
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -165,6 +165,18 @@ static const struct {
},
};
static unsigned long mlx5e_query_pfc_combined(struct mlx5e_priv *priv)
{
struct mlx5_core_dev *mdev = priv->mdev;
u8 pfc_en_tx;
u8 pfc_en_rx;
int err;
err = mlx5_query_port_pfc(mdev, &pfc_en_tx, &pfc_en_rx);
return err ? 0 : pfc_en_tx | pfc_en_rx;
}
#define MLX5E_NUM_Q_CNTRS(priv) (NUM_Q_COUNTERS * (!!priv->q_counter))
#define MLX5E_NUM_RQ_STATS(priv) \
(NUM_RQ_STATS * priv->params.num_channels * \
@ -172,6 +184,7 @@ static const struct {
#define MLX5E_NUM_SQ_STATS(priv) \
(NUM_SQ_STATS * priv->params.num_channels * priv->params.num_tc * \
test_bit(MLX5E_STATE_OPENED, &priv->state))
#define MLX5E_NUM_PFC_COUNTERS(priv) hweight8(mlx5e_query_pfc_combined(priv))
static int mlx5e_get_sset_count(struct net_device *dev, int sset)
{
@ -183,7 +196,8 @@ static int mlx5e_get_sset_count(struct net_device *dev, int sset)
MLX5E_NUM_Q_CNTRS(priv) +
NUM_VPORT_COUNTERS + NUM_PPORT_COUNTERS +
MLX5E_NUM_RQ_STATS(priv) +
MLX5E_NUM_SQ_STATS(priv);
MLX5E_NUM_SQ_STATS(priv) +
MLX5E_NUM_PFC_COUNTERS(priv);
/* fallthrough */
default:
return -EOPNOTSUPP;
@ -192,7 +206,8 @@ static int mlx5e_get_sset_count(struct net_device *dev, int sset)
static void mlx5e_fill_stats_strings(struct mlx5e_priv *priv, uint8_t *data)
{
int i, j, tc, idx = 0;
int i, j, tc, prio, idx = 0;
unsigned long pfc_combined;
/* SW counters */
for (i = 0; i < NUM_SW_COUNTERS; i++)
@ -220,6 +235,21 @@ static void mlx5e_fill_stats_strings(struct mlx5e_priv *priv, uint8_t *data)
strcpy(data + (idx++) * ETH_GSTRING_LEN,
pport_2819_stats_desc[i].name);
for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
for (i = 0; i < NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS; i++)
sprintf(data + (idx++) * ETH_GSTRING_LEN, "prio%d_%s",
prio,
pport_per_prio_traffic_stats_desc[i].name);
}
pfc_combined = mlx5e_query_pfc_combined(priv);
for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
sprintf(data + (idx++) * ETH_GSTRING_LEN, "prio%d_%s",
prio, pport_per_prio_pfc_stats_desc[i].name);
}
}
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
return;
@ -260,7 +290,8 @@ static void mlx5e_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int i, j, tc, idx = 0;
int i, j, tc, prio, idx = 0;
unsigned long pfc_combined;
if (!data)
return;
@ -294,6 +325,20 @@ static void mlx5e_get_ethtool_stats(struct net_device *dev,
data[idx++] = MLX5E_READ_CTR64_BE(&priv->stats.pport.RFC_2819_counters,
pport_2819_stats_desc, i);
for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
for (i = 0; i < NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS; i++)
data[idx++] = MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[prio],
pport_per_prio_traffic_stats_desc, i);
}
pfc_combined = mlx5e_query_pfc_combined(priv);
for_each_set_bit(prio, &pfc_combined, NUM_PPORT_PRIO) {
for (i = 0; i < NUM_PPORT_PER_PRIO_PFC_COUNTERS; i++) {
data[idx++] = MLX5E_READ_CTR64_BE(&priv->stats.pport.per_prio_counters[prio],
pport_per_prio_pfc_stats_desc, i);
}
}
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
return;

9
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -161,6 +161,7 @@ static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
struct mlx5e_pport_stats *pstats = &priv->stats.pport;
struct mlx5_core_dev *mdev = priv->mdev;
int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
int prio;
void *out;
u32 *in;
@ -182,6 +183,14 @@ static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
out = pstats->per_prio_counters[prio];
MLX5_SET(ppcnt_reg, in, prio_tc, prio);
mlx5_core_access_reg(mdev, in, sz, out, sz,
MLX5_REG_PPCNT, 0, 0);
}
free_out:
kvfree(in);
}

31
drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
View File

@ -165,11 +165,19 @@ static const struct counter_desc vport_stats_desc[] = {
#define PPORT_2819_GET(pstats, c) \
MLX5_GET64(ppcnt_reg, pstats->RFC_2819_counters, \
counter_set.eth_2819_cntrs_grp_data_layout.c##_high)
#define PPORT_PER_PRIO_OFF(c) \
MLX5_BYTE_OFF(ppcnt_reg, \
counter_set.eth_per_prio_grp_data_layout.c##_high)
#define PPORT_PER_PRIO_GET(pstats, prio, c) \
MLX5_GET64(ppcnt_reg, pstats->per_prio_counters[prio], \
counter_set.eth_per_prio_grp_data_layout.c##_high)
#define NUM_PPORT_PRIO 8
struct mlx5e_pport_stats {
__be64 IEEE_802_3_counters[MLX5_ST_SZ_QW(ppcnt_reg)];
__be64 RFC_2863_counters[MLX5_ST_SZ_QW(ppcnt_reg)];
__be64 RFC_2819_counters[MLX5_ST_SZ_QW(ppcnt_reg)];
__be64 per_prio_counters[NUM_PPORT_PRIO][MLX5_ST_SZ_QW(ppcnt_reg)];
};
static const struct counter_desc pport_802_3_stats_desc[] = {
@ -241,6 +249,21 @@ static const struct counter_desc pport_2819_stats_desc[] = {
PPORT_2819_OFF(ether_stats_pkts8192to10239octets) },
};
static const struct counter_desc pport_per_prio_traffic_stats_desc[] = {
{ "rx_octets", PPORT_PER_PRIO_OFF(rx_octets) },
{ "rx_frames", PPORT_PER_PRIO_OFF(rx_frames) },
{ "tx_octets", PPORT_PER_PRIO_OFF(tx_octets) },
{ "tx_frames", PPORT_PER_PRIO_OFF(tx_frames) },
};
static const struct counter_desc pport_per_prio_pfc_stats_desc[] = {
{ "rx_pause", PPORT_PER_PRIO_OFF(rx_pause) },
{ "rx_pause_duration", PPORT_PER_PRIO_OFF(rx_pause_duration) },
{ "tx_pause", PPORT_PER_PRIO_OFF(tx_pause) },
{ "tx_pause_duration", PPORT_PER_PRIO_OFF(tx_pause_duration) },
{ "rx_pause_transition", PPORT_PER_PRIO_OFF(rx_pause_transition) },
};
struct mlx5e_rq_stats {
u64 packets;
u64 bytes;
@ -305,9 +328,15 @@ static const struct counter_desc sq_stats_desc[] = {
#define NUM_PPORT_802_3_COUNTERS ARRAY_SIZE(pport_802_3_stats_desc)
#define NUM_PPORT_2863_COUNTERS ARRAY_SIZE(pport_2863_stats_desc)
#define NUM_PPORT_2819_COUNTERS ARRAY_SIZE(pport_2819_stats_desc)
#define NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS \
ARRAY_SIZE(pport_per_prio_traffic_stats_desc)
#define NUM_PPORT_PER_PRIO_PFC_COUNTERS \
ARRAY_SIZE(pport_per_prio_pfc_stats_desc)
#define NUM_PPORT_COUNTERS (NUM_PPORT_802_3_COUNTERS + \
NUM_PPORT_2863_COUNTERS + \
NUM_PPORT_2819_COUNTERS)
NUM_PPORT_2819_COUNTERS + \
NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS * \
NUM_PPORT_PRIO)
#define NUM_RQ_STATS ARRAY_SIZE(rq_stats_desc)
#define NUM_SQ_STATS ARRAY_SIZE(sq_stats_desc)