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net/mlx5_core: Add helper function to read IB error counters 

Added helper function to read IB standard error counters
via the PPCNT register.

The PPCNT register read command provides the 32-bit error counters
of both IB/RoCE link layer and transport layer.

Signed-off-by: Meny Yossefi <menyy@mellanox.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
steinar/wifi_calib_4_9_kernel
Meny Yossefi 2016-02-18 18:15:00 +02:00 committed by Doug Ledford
parent b54ba2772b
commit 1c64bf6f29
4 changed files with 59 additions and 1 deletions
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23
drivers/net/ethernet/mellanox/mlx5/core/port.c
View File

@ -324,6 +324,29 @@ int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev,
}
EXPORT_SYMBOL_GPL(mlx5_query_port_vl_hw_cap);
int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
u8 port_num, void *out, size_t sz)
{
u32 *in;
int err;
in = mlx5_vzalloc(sz);
if (!in) {
err = -ENOMEM;
return err;
}
MLX5_SET(ppcnt_reg, in, local_port, port_num);
MLX5_SET(ppcnt_reg, in, grp, MLX5_INFINIBAND_PORT_COUNTERS_GROUP);
err = mlx5_core_access_reg(dev, in, sz, out,
sz, MLX5_REG_PPCNT, 0, 0);
kvfree(in);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_core_query_ib_ppcnt);
int mlx5_set_port_pause(struct mlx5_core_dev *dev, u32 rx_pause, u32 tx_pause)
{
u32 in[MLX5_ST_SZ_DW(pfcc_reg)];

3
include/linux/mlx5/device.h
View File

@ -1284,7 +1284,8 @@ enum {
MLX5_RFC_3635_COUNTERS_GROUP = 0x3,
MLX5_ETHERNET_EXTENDED_COUNTERS_GROUP = 0x5,
MLX5_PER_PRIORITY_COUNTERS_GROUP = 0x10,
MLX5_PER_TRAFFIC_CLASS_COUNTERS_GROUP = 0x11
MLX5_PER_TRAFFIC_CLASS_COUNTERS_GROUP = 0x11,
MLX5_INFINIBAND_PORT_COUNTERS_GROUP = 0x20,
};
static inline u16 mlx5_to_sw_pkey_sz(int pkey_sz)

2
include/linux/mlx5/driver.h
View File

@ -847,6 +847,8 @@ int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
struct mlx5_odp_caps *odp_caps);
int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
u8 port_num, void *out, size_t sz);
static inline int fw_initializing(struct mlx5_core_dev *dev)
{

32
include/linux/mlx5/mlx5_ifc.h
View File

@ -1208,6 +1208,36 @@ struct mlx5_ifc_phys_layer_cntrs_bits {
u8 reserved_at_640[0x180];
};
struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits {
u8 symbol_error_counter[0x10];
u8 link_error_recovery_counter[0x8];
u8 link_downed_counter[0x8];
u8 port_rcv_errors[0x10];
u8 port_rcv_remote_physical_errors[0x10];
u8 port_rcv_switch_relay_errors[0x10];
u8 port_xmit_discards[0x10];
u8 port_xmit_constraint_errors[0x8];
u8 port_rcv_constraint_errors[0x8];
u8 reserved_at_70[0x8];
u8 link_overrun_errors[0x8];
u8 reserved_at_80[0x10];
u8 vl_15_dropped[0x10];
u8 reserved_at_a0[0xa0];
};
struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits {
u8 transmit_queue_high[0x20];
@ -2618,6 +2648,7 @@ union mlx5_ifc_eth_cntrs_grp_data_layout_auto_bits {
struct mlx5_ifc_eth_extended_cntrs_grp_data_layout_bits eth_extended_cntrs_grp_data_layout;
struct mlx5_ifc_eth_per_prio_grp_data_layout_bits eth_per_prio_grp_data_layout;
struct mlx5_ifc_eth_per_traffic_grp_data_layout_bits eth_per_traffic_grp_data_layout;
struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits ib_port_cntrs_grp_data_layout;
struct mlx5_ifc_phys_layer_cntrs_bits phys_layer_cntrs;
u8 reserved_at_0[0x7c0];
};
@ -6955,6 +6986,7 @@ union mlx5_ifc_ports_control_registers_document_bits {
struct mlx5_ifc_peir_reg_bits peir_reg;
struct mlx5_ifc_pelc_reg_bits pelc_reg;
struct mlx5_ifc_pfcc_reg_bits pfcc_reg;
struct mlx5_ifc_ib_port_cntrs_grp_data_layout_bits ib_port_cntrs_grp_data_layout;
struct mlx5_ifc_phys_layer_cntrs_bits phys_layer_cntrs;
struct mlx5_ifc_pifr_reg_bits pifr_reg;
struct mlx5_ifc_pipg_reg_bits pipg_reg;