diff options
Diffstat (limited to '')
6 files changed, 140 insertions, 6 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst index d6c10408adc4..5edf50d7dbd5 100644 --- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5.rst @@ -739,3 +739,24 @@ SF tracepoints: $ cat /sys/kernel/debug/tracing/trace ... devlink-9519 [046] ..... 24624.400271: mlx5_sf_hwc_deferred_free: (0000:06:00.0) hw_id=0x8000 + +- mlx5_sf_vhca_event: trace SF vhca event and state:: + + $ echo mlx5:mlx5_sf_vhca_event >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + kworker/u128:3-9093 [046] ..... 24625.365525: mlx5_sf_vhca_event: (0000:06:00.0) hw_id=0x8000 sfnum=88 vhca_state=1 + +- mlx5_sf_dev_add : trace SF device add event:: + + $ echo mlx5:mlx5_sf_dev_add>> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + kworker/u128:3-9093 [000] ..... 24616.524495: mlx5_sf_dev_add: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88 + +- mlx5_sf_dev_del : trace SF device delete event:: + + $ echo mlx5:mlx5_sf_dev_del >> /sys/kernel/debug/tracing/set_event + $ cat /sys/kernel/debug/tracing/trace + ... + kworker/u128:3-9093 [044] ..... 24624.400749: mlx5_sf_dev_del: (0000:06:00.0) sfdev=00000000fc5d96fd aux_id=4 hw_id=0x8000 sfnum=88 diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c index 871c2fbe18d3..f37db7cc32a6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.c @@ -9,6 +9,8 @@ #include "sf/sf.h" #include "sf/mlx5_ifc_vhca_event.h" #include "ecpf.h" +#define CREATE_TRACE_POINTS +#include "diag/dev_tracepoint.h" struct mlx5_sf_dev_table { struct xarray devices; @@ -66,13 +68,18 @@ static void mlx5_sf_dev_release(struct device *device) kfree(sf_dev); } -static void mlx5_sf_dev_remove(struct mlx5_sf_dev *sf_dev) +static void mlx5_sf_dev_remove(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_dev) { + int id; + + id = sf_dev->adev.id; + trace_mlx5_sf_dev_del(dev, sf_dev, id); + auxiliary_device_delete(&sf_dev->adev); auxiliary_device_uninit(&sf_dev->adev); } -static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum) +static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u16 fn_id, u32 sfnum) { struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table; struct mlx5_sf_dev *sf_dev; @@ -100,6 +107,7 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum) sf_dev->adev.dev.groups = sf_attr_groups; sf_dev->sfnum = sfnum; sf_dev->parent_mdev = dev; + sf_dev->fn_id = fn_id; if (!table->max_sfs) { mlx5_adev_idx_free(id); @@ -109,6 +117,8 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum) } sf_dev->bar_base_addr = table->base_address + (sf_index * table->sf_bar_length); + trace_mlx5_sf_dev_add(dev, sf_dev, id); + err = auxiliary_device_init(&sf_dev->adev); if (err) { mlx5_adev_idx_free(id); @@ -128,7 +138,7 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum) return; xa_err: - mlx5_sf_dev_remove(sf_dev); + mlx5_sf_dev_remove(dev, sf_dev); add_err: mlx5_core_err(dev, "SF DEV: fail device add for index=%d sfnum=%d err=%d\n", sf_index, sfnum, err); @@ -139,7 +149,7 @@ static void mlx5_sf_dev_del(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_de struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table; xa_erase(&table->devices, sf_index); - mlx5_sf_dev_remove(sf_dev); + mlx5_sf_dev_remove(dev, sf_dev); } static int @@ -178,7 +188,8 @@ mlx5_sf_dev_state_change_handler(struct notifier_block *nb, unsigned long event_ break; case MLX5_VHCA_STATE_ACTIVE: if (!sf_dev) - mlx5_sf_dev_add(table->dev, sf_index, event->sw_function_id); + mlx5_sf_dev_add(table->dev, sf_index, event->function_id, + event->sw_function_id); break; default: break; @@ -260,7 +271,7 @@ static void mlx5_sf_dev_destroy_all(struct mlx5_sf_dev_table *table) xa_for_each(&table->devices, index, sf_dev) { xa_erase(&table->devices, index); - mlx5_sf_dev_remove(sf_dev); + mlx5_sf_dev_remove(table->dev, sf_dev); } } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h index 149fd9e698cf..2a66a427ef15 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/dev.h @@ -16,6 +16,7 @@ struct mlx5_sf_dev { struct mlx5_core_dev *mdev; phys_addr_t bar_base_addr; u32 sfnum; + u16 fn_id; }; void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h new file mode 100644 index 000000000000..7f7c9af5deed --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/dev/diag/dev_tracepoint.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mlx5 + +#if !defined(_MLX5_SF_DEV_TP_) || defined(TRACE_HEADER_MULTI_READ) +#define _MLX5_SF_DEV_TP_ + +#include <linux/tracepoint.h> +#include <linux/mlx5/driver.h> +#include "../../dev/dev.h" + +DECLARE_EVENT_CLASS(mlx5_sf_dev_template, + TP_PROTO(const struct mlx5_core_dev *dev, + const struct mlx5_sf_dev *sfdev, + int aux_id), + TP_ARGS(dev, sfdev, aux_id), + TP_STRUCT__entry(__string(devname, dev_name(dev->device)) + __field(const struct mlx5_sf_dev*, sfdev) + __field(int, aux_id) + __field(u16, hw_fn_id) + __field(u32, sfnum) + ), + TP_fast_assign(__assign_str(devname, dev_name(dev->device)); + __entry->sfdev = sfdev; + __entry->aux_id = aux_id; + __entry->hw_fn_id = sfdev->fn_id; + __entry->sfnum = sfdev->sfnum; + ), + TP_printk("(%s) sfdev=%pK aux_id=%d hw_id=0x%x sfnum=%u\n", + __get_str(devname), __entry->sfdev, + __entry->aux_id, __entry->hw_fn_id, + __entry->sfnum) +); + +DEFINE_EVENT(mlx5_sf_dev_template, mlx5_sf_dev_add, + TP_PROTO(const struct mlx5_core_dev *dev, + const struct mlx5_sf_dev *sfdev, + int aux_id), + TP_ARGS(dev, sfdev, aux_id) + ); + +DEFINE_EVENT(mlx5_sf_dev_template, mlx5_sf_dev_del, + TP_PROTO(const struct mlx5_core_dev *dev, + const struct mlx5_sf_dev *sfdev, + int aux_id), + TP_ARGS(dev, sfdev, aux_id) + ); + +#endif /* _MLX5_SF_DEV_TP_ */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH sf/dev/diag +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE dev_tracepoint +#include <trace/define_trace.h> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h new file mode 100644 index 000000000000..fd814a190b8b --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/diag/vhca_tracepoint.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mlx5 + +#if !defined(_MLX5_SF_VHCA_TP_) || defined(TRACE_HEADER_MULTI_READ) +#define _MLX5_SF_VHCA_TP_ + +#include <linux/tracepoint.h> +#include <linux/mlx5/driver.h> +#include "sf/vhca_event.h" + +TRACE_EVENT(mlx5_sf_vhca_event, + TP_PROTO(const struct mlx5_core_dev *dev, + const struct mlx5_vhca_state_event *event), + TP_ARGS(dev, event), + TP_STRUCT__entry(__string(devname, dev_name(dev->device)) + __field(u16, hw_fn_id) + __field(u32, sfnum) + __field(u8, vhca_state) + ), + TP_fast_assign(__assign_str(devname, dev_name(dev->device)); + __entry->hw_fn_id = event->function_id; + __entry->sfnum = event->sw_function_id; + __entry->vhca_state = event->new_vhca_state; + ), + TP_printk("(%s) hw_id=0x%x sfnum=%u vhca_state=%d\n", + __get_str(devname), __entry->hw_fn_id, + __entry->sfnum, __entry->vhca_state) +); + +#endif /* _MLX5_SF_VHCA_TP_ */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH sf/diag +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE vhca_tracepoint +#include <trace/define_trace.h> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.c index 28b14b05086f..d908fba968f0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/vhca_event.c @@ -6,6 +6,8 @@ #include "mlx5_core.h" #include "vhca_event.h" #include "ecpf.h" +#define CREATE_TRACE_POINTS +#include "diag/vhca_tracepoint.h" struct mlx5_vhca_state_notifier { struct mlx5_core_dev *dev; @@ -82,6 +84,7 @@ mlx5_vhca_event_notify(struct mlx5_core_dev *dev, struct mlx5_vhca_state_event * vhca_state_context.vhca_state); mlx5_vhca_event_arm(dev, event->function_id); + trace_mlx5_sf_vhca_event(dev, event); blocking_notifier_call_chain(&dev->priv.vhca_state_notifier->n_head, 0, event); } |