在 2024/6/19 23:32, Thomas Monjalon 写道:
19/06/2024 08:31, Huisong Li:--- /dev/null +++ b/lib/power/rte_power_qos.h @@ -0,0 +1,71 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2024 HiSilicon Limited + */ + +#ifndef RTE_POWER_QOS_H +#define RTE_POWER_QOS_H + +#include <rte_compat.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @file rte_power_qos.h + * + * PM QoS API. + * + * The CPU-wide resume latency limit has a positive impact on this CPU's idle + * state selection in each cpuidle governor. + * Please see the PM QoS on CPU wide in the following link: + * https://www.kernel.org/doc/html/latest/admin-guide/abi-testing.html?highlight=pm_qos_resume_latency_us#abi-sys-devices-power-pm-qos-resume-latency-us + * + * The deeper the idle state, the lower the power consumption, but the + * longer the resume time. Some service are delay sensitive and very except the + * low resume time, like interrupt packet receiving mode. + * + * In these case, per-CPU PM QoS API can be used to control this CPU's idle + * state selection and limit just enter the shallowest idle state to low the + * delay after sleep by setting strict resume latency (zero value). + */ + +#define RTE_POWER_QOS_STRICT_LATENCY_VALUE 0 +#define RTE_POWER_QOS_RESUME_LATENCY_NO_CONSTRAINT ((int)(UINT32_MAX >> 1))stdint.h include is missing
Yes, it desn't satisfy self-contained header files. will add it in next version, thanks.
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