diff options
author | Guangbin Huang <huangguangbin2@huawei.com> | 2022-06-28 09:34:19 +0300 |
---|---|---|
committer | Will Deacon <will@kernel.org> | 2022-07-06 13:25:53 +0300 |
commit | 66637ab137b44914356a9dc7a9b3f8ebcf0b0695 (patch) | |
tree | d4255604eb613e60b12723a21ca43b494ae18d72 /drivers/perf/hisilicon/Kconfig | |
parent | 39915b6b5fc209c9262b32ec754b3838550f2a1f (diff) | |
download | linux-66637ab137b44914356a9dc7a9b3f8ebcf0b0695.tar.xz |
drivers/perf: hisi: add driver for HNS3 PMU
HNS3(HiSilicon Network System 3) PMU is RCiEP device in HiSilicon SoC NIC,
supports collection of performance statistics such as bandwidth, latency,
packet rate and interrupt rate.
NIC of each SICL has one PMU device for it. Driver registers each PMU
device to perf, and exports information of supported events, filter mode of
each event, bdf range, hardware clock frequency, identifier and so on via
sysfs.
Each PMU device has its own registers of control, counters and interrupt,
and it supports 8 hardware events, each hardward event has its own
registers for configuration, counters and interrupt.
Filter options contains:
config - select event
port - select physical port of nic
tc - select tc(must be used with port)
func - select PF/VF
queue - select queue of PF/VF(must be used with func)
intr - select interrupt number(must be used with func)
global - select all functions of IO DIE
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Link: https://lore.kernel.org/r/20220628063419.38514-3-huangguangbin2@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/hisilicon/Kconfig')
-rw-r--r-- | drivers/perf/hisilicon/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/perf/hisilicon/Kconfig b/drivers/perf/hisilicon/Kconfig index 5546218b5598..171bfc1b6bc2 100644 --- a/drivers/perf/hisilicon/Kconfig +++ b/drivers/perf/hisilicon/Kconfig @@ -14,3 +14,13 @@ config HISI_PCIE_PMU RCiEP devices. Adds the PCIe PMU into perf events system for monitoring latency, bandwidth etc. + +config HNS3_PMU + tristate "HNS3 PERF PMU" + depends on ARM64 || COMPILE_TEST + depends on PCI + help + Provide support for HNS3 performance monitoring unit (PMU) RCiEP + devices. + Adds the HNS3 PMU into perf events system for monitoring latency, + bandwidth etc. |