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Commit 73e90646 authored by Gal Pressman's avatar Gal Pressman Committed by Saeed Mahameed
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net/mlx5e: Add PCIe outbound stalls counters 



outbound_pci_stalled_rd - The percentage of time within the last second
that the NIC had outbound non-posted read requests but could not perform
the operation due to insufficient non-posted credits.

outbound_pci_stalled_wr - The percentage of time within the
last second that the NIC had outbound posted writes requests but could
not perform the operation due to insufficient posted credits.

outbound_pci_stalled_rd_events - The number of events where
outbound_pci_stalled_rd was above the threshold.

outbound_pci_stalled_wr_events - The number of events where
outbound_pci_stalled_wr was above the threshold.

Signed-off-by: default avatarGal Pressman <galp@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 5405fa26

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

+8 −0
Original line number Diff line number Diff line
@@ -246,6 +246,10 @@ static void mlx5e_fill_stats_strings(struct mlx5e_priv *priv, uint8_t *data) 
		strcpy(data + (idx++) * ETH_GSTRING_LEN,

		       pcie_perf_stats_desc[i].format);



	for (i = 0; i < NUM_PCIE_PERF_STALL_COUNTERS(priv); i++)

		strcpy(data + (idx++) * ETH_GSTRING_LEN,

		       pcie_perf_stall_stats_desc[i].format);



	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,
@@ -377,6 +381,10 @@ void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv, 
		data[idx++] = MLX5E_READ_CTR32_BE(&priv->stats.pcie.pcie_perf_counters,

						  pcie_perf_stats_desc, i);



	for (i = 0; i < NUM_PCIE_PERF_STALL_COUNTERS(priv); i++)

		data[idx++] = MLX5E_READ_CTR32_BE(&priv->stats.pcie.pcie_perf_counters,

						  pcie_perf_stall_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],

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

+12 −1
Original line number Diff line number Diff line
@@ -305,6 +305,13 @@ static const struct counter_desc pcie_perf_stats_desc[] = { 
	{ "tx_pci_signal_integrity", PCIE_PERF_OFF(tx_errors) },

};



static const struct counter_desc pcie_perf_stall_stats_desc[] = {

	{ "outbound_pci_stalled_rd", PCIE_PERF_OFF(outbound_stalled_reads) },

	{ "outbound_pci_stalled_wr", PCIE_PERF_OFF(outbound_stalled_writes) },

	{ "outbound_pci_stalled_rd_events", PCIE_PERF_OFF(outbound_stalled_reads_events) },

	{ "outbound_pci_stalled_wr_events", PCIE_PERF_OFF(outbound_stalled_writes_events) },

};



struct mlx5e_rq_stats {

	u64 packets;

	u64 bytes;
@@ -397,6 +404,9 @@ static const struct counter_desc sq_stats_desc[] = { 
#define NUM_PCIE_PERF_COUNTERS(priv) \

	(ARRAY_SIZE(pcie_perf_stats_desc) * \

	 MLX5_CAP_MCAM_FEATURE((priv)->mdev, pcie_performance_group))

#define NUM_PCIE_PERF_STALL_COUNTERS(priv) \

	(ARRAY_SIZE(pcie_perf_stall_stats_desc) * \

	 MLX5_CAP_MCAM_FEATURE((priv)->mdev, pcie_outbound_stalled))

#define NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS \

	ARRAY_SIZE(pport_per_prio_traffic_stats_desc)

#define NUM_PPORT_PER_PRIO_PFC_COUNTERS \
@@ -407,7 +417,8 @@ static const struct counter_desc sq_stats_desc[] = { 
					 NUM_PPORT_PHY_STATISTICAL_COUNTERS(priv) + \

					 NUM_PPORT_PER_PRIO_TRAFFIC_COUNTERS * \

					 NUM_PPORT_PRIO)

#define NUM_PCIE_COUNTERS(priv)		NUM_PCIE_PERF_COUNTERS(priv)

#define NUM_PCIE_COUNTERS(priv)		(NUM_PCIE_PERF_COUNTERS(priv) + \

					 NUM_PCIE_PERF_STALL_COUNTERS(priv))

#define NUM_RQ_STATS			ARRAY_SIZE(rq_stats_desc)

#define NUM_SQ_STATS			ARRAY_SIZE(sq_stats_desc)