net/mlx5: SF_DEV Add SF device trace points
Add SF device add and delete specific trace points. echo mlx5:mlx5_sf_dev_add >> /sys/kernel/debug/tracing/set_event echo mlx5:mlx5_sf_dev_del >> /sys/kernel/debug/tracing/set_event echo mlx5:mlx5_sf_vhca_event >> /sys/kernel/debug/tracing/set_event Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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@ -739,3 +739,24 @@ SF tracepoints:
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$ cat /sys/kernel/debug/tracing/trace
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...
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devlink-9519 [046] ..... 24624.400271: mlx5_sf_hwc_deferred_free: (0000:06:00.0) hw_id=0x8000
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- mlx5_sf_vhca_event: trace SF vhca event and state::
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$ echo mlx5:mlx5_sf_vhca_event >> /sys/kernel/debug/tracing/set_event
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$ cat /sys/kernel/debug/tracing/trace
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...
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kworker/u128:3-9093 [046] ..... 24625.365525: mlx5_sf_vhca_event: (0000:06:00.0) hw_id=0x8000 sfnum=88 vhca_state=1
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- mlx5_sf_dev_add : trace SF device add event::
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$ echo mlx5:mlx5_sf_dev_add>> /sys/kernel/debug/tracing/set_event
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$ cat /sys/kernel/debug/tracing/trace
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...
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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
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- mlx5_sf_dev_del : trace SF device delete event::
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$ echo mlx5:mlx5_sf_dev_del >> /sys/kernel/debug/tracing/set_event
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$ cat /sys/kernel/debug/tracing/trace
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...
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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
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@ -9,6 +9,8 @@
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#include "sf/sf.h"
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#include "sf/mlx5_ifc_vhca_event.h"
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#include "ecpf.h"
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#define CREATE_TRACE_POINTS
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#include "diag/dev_tracepoint.h"
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struct mlx5_sf_dev_table {
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struct xarray devices;
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@ -66,13 +68,18 @@ static void mlx5_sf_dev_release(struct device *device)
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kfree(sf_dev);
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}
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static void mlx5_sf_dev_remove(struct mlx5_sf_dev *sf_dev)
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static void mlx5_sf_dev_remove(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_dev)
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{
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int id;
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id = sf_dev->adev.id;
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trace_mlx5_sf_dev_del(dev, sf_dev, id);
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auxiliary_device_delete(&sf_dev->adev);
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auxiliary_device_uninit(&sf_dev->adev);
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}
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static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum)
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static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u16 fn_id, u32 sfnum)
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{
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struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table;
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struct mlx5_sf_dev *sf_dev;
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@ -100,6 +107,7 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum)
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sf_dev->adev.dev.groups = sf_attr_groups;
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sf_dev->sfnum = sfnum;
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sf_dev->parent_mdev = dev;
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sf_dev->fn_id = fn_id;
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if (!table->max_sfs) {
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mlx5_adev_idx_free(id);
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@ -109,6 +117,8 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum)
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}
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sf_dev->bar_base_addr = table->base_address + (sf_index * table->sf_bar_length);
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trace_mlx5_sf_dev_add(dev, sf_dev, id);
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err = auxiliary_device_init(&sf_dev->adev);
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if (err) {
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mlx5_adev_idx_free(id);
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@ -128,7 +138,7 @@ static void mlx5_sf_dev_add(struct mlx5_core_dev *dev, u16 sf_index, u32 sfnum)
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return;
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xa_err:
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mlx5_sf_dev_remove(sf_dev);
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mlx5_sf_dev_remove(dev, sf_dev);
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add_err:
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mlx5_core_err(dev, "SF DEV: fail device add for index=%d sfnum=%d err=%d\n",
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sf_index, sfnum, err);
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@ -139,7 +149,7 @@ static void mlx5_sf_dev_del(struct mlx5_core_dev *dev, struct mlx5_sf_dev *sf_de
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struct mlx5_sf_dev_table *table = dev->priv.sf_dev_table;
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xa_erase(&table->devices, sf_index);
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mlx5_sf_dev_remove(sf_dev);
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mlx5_sf_dev_remove(dev, sf_dev);
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}
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static int
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@ -178,7 +188,8 @@ mlx5_sf_dev_state_change_handler(struct notifier_block *nb, unsigned long event_
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break;
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case MLX5_VHCA_STATE_ACTIVE:
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if (!sf_dev)
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mlx5_sf_dev_add(table->dev, sf_index, event->sw_function_id);
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mlx5_sf_dev_add(table->dev, sf_index, event->function_id,
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event->sw_function_id);
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break;
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default:
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break;
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@ -260,7 +271,7 @@ static void mlx5_sf_dev_destroy_all(struct mlx5_sf_dev_table *table)
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xa_for_each(&table->devices, index, sf_dev) {
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xa_erase(&table->devices, index);
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mlx5_sf_dev_remove(sf_dev);
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mlx5_sf_dev_remove(table->dev, sf_dev);
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}
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}
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@ -16,6 +16,7 @@ struct mlx5_sf_dev {
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struct mlx5_core_dev *mdev;
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phys_addr_t bar_base_addr;
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u32 sfnum;
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u16 fn_id;
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};
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void mlx5_sf_dev_table_create(struct mlx5_core_dev *dev);
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@ -0,0 +1,58 @@
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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mlx5
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#if !defined(_MLX5_SF_DEV_TP_) || defined(TRACE_HEADER_MULTI_READ)
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#define _MLX5_SF_DEV_TP_
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#include <linux/tracepoint.h>
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#include <linux/mlx5/driver.h>
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#include "../../dev/dev.h"
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DECLARE_EVENT_CLASS(mlx5_sf_dev_template,
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TP_PROTO(const struct mlx5_core_dev *dev,
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const struct mlx5_sf_dev *sfdev,
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int aux_id),
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TP_ARGS(dev, sfdev, aux_id),
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TP_STRUCT__entry(__string(devname, dev_name(dev->device))
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__field(const struct mlx5_sf_dev*, sfdev)
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__field(int, aux_id)
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__field(u16, hw_fn_id)
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__field(u32, sfnum)
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),
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TP_fast_assign(__assign_str(devname, dev_name(dev->device));
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__entry->sfdev = sfdev;
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__entry->aux_id = aux_id;
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__entry->hw_fn_id = sfdev->fn_id;
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__entry->sfnum = sfdev->sfnum;
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),
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TP_printk("(%s) sfdev=%pK aux_id=%d hw_id=0x%x sfnum=%u\n",
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__get_str(devname), __entry->sfdev,
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__entry->aux_id, __entry->hw_fn_id,
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__entry->sfnum)
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);
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DEFINE_EVENT(mlx5_sf_dev_template, mlx5_sf_dev_add,
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TP_PROTO(const struct mlx5_core_dev *dev,
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const struct mlx5_sf_dev *sfdev,
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int aux_id),
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TP_ARGS(dev, sfdev, aux_id)
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);
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DEFINE_EVENT(mlx5_sf_dev_template, mlx5_sf_dev_del,
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TP_PROTO(const struct mlx5_core_dev *dev,
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const struct mlx5_sf_dev *sfdev,
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int aux_id),
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TP_ARGS(dev, sfdev, aux_id)
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);
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#endif /* _MLX5_SF_DEV_TP_ */
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/* This part must be outside protection */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH sf/dev/diag
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE dev_tracepoint
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#include <trace/define_trace.h>
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@ -0,0 +1,40 @@
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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM mlx5
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#if !defined(_MLX5_SF_VHCA_TP_) || defined(TRACE_HEADER_MULTI_READ)
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#define _MLX5_SF_VHCA_TP_
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#include <linux/tracepoint.h>
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#include <linux/mlx5/driver.h>
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#include "sf/vhca_event.h"
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TRACE_EVENT(mlx5_sf_vhca_event,
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TP_PROTO(const struct mlx5_core_dev *dev,
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const struct mlx5_vhca_state_event *event),
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TP_ARGS(dev, event),
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TP_STRUCT__entry(__string(devname, dev_name(dev->device))
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__field(u16, hw_fn_id)
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__field(u32, sfnum)
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__field(u8, vhca_state)
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),
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TP_fast_assign(__assign_str(devname, dev_name(dev->device));
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__entry->hw_fn_id = event->function_id;
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__entry->sfnum = event->sw_function_id;
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__entry->vhca_state = event->new_vhca_state;
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),
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TP_printk("(%s) hw_id=0x%x sfnum=%u vhca_state=%d\n",
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__get_str(devname), __entry->hw_fn_id,
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__entry->sfnum, __entry->vhca_state)
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);
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#endif /* _MLX5_SF_VHCA_TP_ */
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/* This part must be outside protection */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH sf/diag
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE vhca_tracepoint
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#include <trace/define_trace.h>
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#include "mlx5_core.h"
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#include "vhca_event.h"
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#include "ecpf.h"
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#define CREATE_TRACE_POINTS
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#include "diag/vhca_tracepoint.h"
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struct mlx5_vhca_state_notifier {
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struct mlx5_core_dev *dev;
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@ -82,6 +84,7 @@ mlx5_vhca_event_notify(struct mlx5_core_dev *dev, struct mlx5_vhca_state_event *
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vhca_state_context.vhca_state);
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mlx5_vhca_event_arm(dev, event->function_id);
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trace_mlx5_sf_vhca_event(dev, event);
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blocking_notifier_call_chain(&dev->priv.vhca_state_notifier->n_head, 0, event);
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}
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