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![Wu Hao](/assets/img/avatar_default.png)
This patch adds support for performance reporting private feature for FPGA Management Engine (FME). Now it supports several different performance counters, including 'basic', 'cache', 'fabric', 'vtd' and 'vtd_sip'. It allows user to use standard linux tools to access these performance counters. e.g. List all events by "perf list" perf list | grep fme dfl_fme0/cache_read_hit/ [Kernel PMU event] dfl_fme0/cache_read_miss/ [Kernel PMU event] ... dfl_fme0/fab_mmio_read/ [Kernel PMU event] dfl_fme0/fab_mmio_write/ [Kernel PMU event] ... dfl_fme0/fab_port_mmio_read,portid=?/ [Kernel PMU event] dfl_fme0/fab_port_mmio_write,portid=?/ [Kernel PMU event] ... dfl_fme0/vtd_port_devtlb_1g_fill,portid=?/ [Kernel PMU event] dfl_fme0/vtd_port_devtlb_2m_fill,portid=?/ [Kernel PMU event] ... dfl_fme0/vtd_sip_iotlb_1g_hit/ [Kernel PMU event] dfl_fme0/vtd_sip_iotlb_1g_miss/ [Kernel PMU event] ... dfl_fme0/clock [Kernel PMU event] ... e.g. check increased counter value after run one application using "perf stat" command. perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_mmio_write/ ./test Performance counter stats for './test': 1 dfl_fme0/fab_mmio_read/ 2 dfl_fme0/fab_mmio_write/ 1.009496520 seconds time elapsed Please note that fabric counters support both fab_* and fab_port_*, but actually they are sharing one set of performance counters in hardware. If user wants to monitor overall data events on fab_* then fab_port_* can't be supported at the same time, see example below: perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_port_mmio_write,portid=0/ Performance counter stats for 'system wide': 0 dfl_fme0/fab_mmio_read/ <not supported> dfl_fme0/fab_port_mmio_write,portid=0/ 2.141064085 seconds time elapsed Signed-off-by: Luwei Kang <luwei.kang@intel.com> Signed-off-by: Xu Yilun <yilun.xu@intel.com> Signed-off-by: Wu Hao <hao.wu@intel.com> Link: https://lore.kernel.org/r/1587949583-12058-3-git-send-email-hao.wu@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Header file for FPGA Management Engine (FME) Driver
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*
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* Copyright (C) 2017-2018 Intel Corporation, Inc.
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*
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* Authors:
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* Kang Luwei <luwei.kang@intel.com>
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* Xiao Guangrong <guangrong.xiao@linux.intel.com>
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* Wu Hao <hao.wu@intel.com>
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* Joseph Grecco <joe.grecco@intel.com>
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* Enno Luebbers <enno.luebbers@intel.com>
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* Tim Whisonant <tim.whisonant@intel.com>
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* Ananda Ravuri <ananda.ravuri@intel.com>
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* Henry Mitchel <henry.mitchel@intel.com>
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*/
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#ifndef __DFL_FME_H
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#define __DFL_FME_H
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/**
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* struct dfl_fme - dfl fme private data
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*
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* @mgr: FME's FPGA manager platform device.
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* @region_list: linked list of FME's FPGA regions.
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* @bridge_list: linked list of FME's FPGA bridges.
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* @pdata: fme platform device's pdata.
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*/
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struct dfl_fme {
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struct platform_device *mgr;
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struct list_head region_list;
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struct list_head bridge_list;
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struct dfl_feature_platform_data *pdata;
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};
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extern const struct dfl_feature_ops fme_pr_mgmt_ops;
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extern const struct dfl_feature_id fme_pr_mgmt_id_table[];
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extern const struct dfl_feature_ops fme_global_err_ops;
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extern const struct dfl_feature_id fme_global_err_id_table[];
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extern const struct attribute_group fme_global_err_group;
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extern const struct dfl_feature_ops fme_perf_ops;
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extern const struct dfl_feature_id fme_perf_id_table[];
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#endif /* __DFL_FME_H */
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