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net/mlx4_en: Show PF own statistics via ethtool 

Allow the user to observe the PF own statistics using ethtool with pf_
prefixed counter names.

Those counters are the PF statistics out of the overall port statistics.
Every PF QP is attached to a counter and the summary of those counters
is the PF statistics.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eran Ben Elisha 2015-06-15 17:59:06 +03:00 committed by David S. Miller
parent 9616982f3f
commit b42de4d012
5 changed files with 49 additions and 3 deletions
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17
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
View File

@ -119,6 +119,12 @@ static const char main_strings[][ETH_GSTRING_LEN] = {
"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
"rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
/* pf statistics */
"pf_rx_packets",
"pf_rx_bytes",
"pf_tx_packets",
"pf_tx_bytes",
/* priority flow control statistics rx */
"rx_pause_prio_0", "rx_pause_duration_prio_0",
"rx_pause_transition_prio_0",
@ -368,6 +374,11 @@ static void mlx4_en_get_ethtool_stats(struct net_device *dev,
if (bitmap_iterator_test(&it))
data[index++] = ((unsigned long *)&priv->port_stats)[i];
for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
data[index++] =
((unsigned long *)&priv->pf_stats)[i];
for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
i++, bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
@ -448,6 +459,12 @@ static void mlx4_en_get_strings(struct net_device *dev,
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[strings]);
for (i = 0; i < NUM_PF_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))
strcpy(data + (index++) * ETH_GSTRING_LEN,
main_strings[strings]);
for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
bitmap_iterator_inc(&it))
if (bitmap_iterator_test(&it))

8
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View File

@ -1895,6 +1895,7 @@ static void mlx4_en_clear_stats(struct net_device *dev)
sizeof(priv->rx_priority_flowstats));
memset(&priv->tx_priority_flowstats, 0,
sizeof(priv->tx_priority_flowstats));
memset(&priv->pf_stats, 0, sizeof(priv->pf_stats));
for (i = 0; i < priv->tx_ring_num; i++) {
priv->tx_ring[i]->bytes = 0;
@ -2685,7 +2686,7 @@ void mlx4_en_update_pfc_stats_bitmap(struct mlx4_dev *dev,
u8 rx_ppp, u8 rx_pause,
u8 tx_ppp, u8 tx_pause)
{
int last_i = NUM_MAIN_STATS + NUM_PORT_STATS;
int last_i = NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PF_STATS;
if (!mlx4_is_slave(dev) &&
(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)) {
@ -2747,6 +2748,11 @@ void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev,
bitmap_set(stats_bitmap->bitmap, last_i, NUM_PORT_STATS);
last_i += NUM_PORT_STATS;
if (mlx4_is_master(dev))
bitmap_set(stats_bitmap->bitmap, last_i,
NUM_PF_STATS);
last_i += NUM_PF_STATS;
mlx4_en_update_pfc_stats_bitmap(dev, stats_bitmap,
rx_ppp, rx_pause,
tx_ppp, tx_pause);

15
drivers/net/ethernet/mellanox/mlx4/en_port.c
View File

@ -149,6 +149,7 @@ static unsigned long en_stats_adder(__be64 *start, __be64 *next, int num)
int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
{
struct mlx4_counter tmp_counter_stats;
struct mlx4_en_stat_out_mbox *mlx4_en_stats;
struct mlx4_en_stat_out_flow_control_mbox *flowstats;
struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
@ -156,7 +157,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
struct mlx4_cmd_mailbox *mailbox;
u64 in_mod = reset << 8 | port;
int err;
int i;
int i, counter_index;
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
if (IS_ERR(mailbox))
@ -296,6 +297,11 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
spin_unlock_bh(&priv->stats_lock);
memset(&tmp_counter_stats, 0, sizeof(tmp_counter_stats));
counter_index = mlx4_get_default_counter_index(mdev->dev, port);
err = mlx4_get_counter_stats(mdev->dev, counter_index,
&tmp_counter_stats, reset);
/* 0xffs indicates invalid value */
memset(mailbox->buf, 0xff, sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
@ -314,6 +320,13 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
spin_lock_bh(&priv->stats_lock);
if (tmp_counter_stats.counter_mode == 0) {
priv->pf_stats.rx_bytes = be64_to_cpu(tmp_counter_stats.rx_bytes);
priv->pf_stats.tx_bytes = be64_to_cpu(tmp_counter_stats.tx_bytes);
priv->pf_stats.rx_packets = be64_to_cpu(tmp_counter_stats.rx_frames);
priv->pf_stats.tx_packets = be64_to_cpu(tmp_counter_stats.tx_frames);
}
for (i = 0; i < MLX4_NUM_PRIORITIES; i++) {
priv->rx_priority_flowstats[i].rx_pause =
be64_to_cpu(flowstats[i].rx_pause);

1
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View File

@ -566,6 +566,7 @@ struct mlx4_en_priv {
#endif
struct mlx4_en_perf_stats pstats;
struct mlx4_en_pkt_stats pkstats;
struct mlx4_en_counter_stats pf_stats;
struct mlx4_en_flow_stats_rx rx_priority_flowstats[MLX4_NUM_PRIORITIES];
struct mlx4_en_flow_stats_tx tx_priority_flowstats[MLX4_NUM_PRIORITIES];
struct mlx4_en_flow_stats_rx rx_flowstats;

11
drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h
View File

@ -23,6 +23,14 @@ struct mlx4_en_pkt_stats {
#define NUM_PKT_STATS 43
};
struct mlx4_en_counter_stats {
unsigned long rx_packets;
unsigned long rx_bytes;
unsigned long tx_packets;
unsigned long tx_bytes;
#define NUM_PF_STATS 4
};
struct mlx4_en_port_stats {
unsigned long tso_packets;
unsigned long xmit_more;
@ -71,7 +79,8 @@ struct mlx4_en_flow_stats_tx {
#define NUM_FLOW_STATS (NUM_FLOW_STATS_RX + NUM_FLOW_STATS_TX + \
NUM_FLOW_PRIORITY_STATS_TX + \
NUM_FLOW_PRIORITY_STATS_RX)
NUM_FLOW_PRIORITY_STATS_RX + \
NUM_PF_STATS)
struct mlx4_en_stat_out_flow_control_mbox {
/* Total number of PAUSE frames received from the far-end port */