[PATCH v1 00/15] power: unify and improve lcore ID verification

[lihuisong (C)]

On 4/16/2026 11:51 PM, Stephen Hemminger wrote:
> On Thu, 16 Apr 2026 11:05:57 +0800
> Huisong Li <lihuisong at huawei.com> wrote:
>
>> This patch series reworks the lcore ID verification logic within the power
>> library to ensure consistency and improve maintainability. Currently, various
>> cpufreq drivers implement their own lcore ID checks, often relying on simple
>> range checks that do not account for whether a core is actually enabled in
>> the application.
>>
>> Key Changes:
>> 1. Replaces basic range checks with rte_lcore_is_enabled() across all
>>     cpufreq drivers (ACPI, AMD P-state, CPPC, Intel P-state, and KVM VM).
>>     This ensures the power library only operates on lcores assigned to the
>>     application.
>> 2. Introduces a common macro in the power library's internal headers to
>>     standardize lcore ID verification.
>> 3. Moves the verification logic from individual driver implementations up
>>     to the high-level framework API. This reduces duplication code and
>>     ensures that all drivers benefit from uniform validation.
>> 4. Updates the power QoS and PMD Management libraries to use the new macro.
>>
>> Huisong Li (15):
>>    power/kvm_vm: enforce enabled lcore ID check
>>    power/acpi_cpufreq: enforce enabled lcore ID check
>>    power/amd_pstate: enforce enabled lcore ID check
>>    power/cppc_cpufreq: enforce enabled lcore ID check
>>    power/intel_pstate: enforce enabled lcore ID check
>>    power: enforce enabled lcore ID check
>>    power: add a common macro to verify lcore ID
>>    power/pmd_mgmt: replace lcore ID verification with new macro
>>    power/qos: replace the lcore ID verification with new macro
>>    power/cpufreq: add the lcore ID verification to framework
>>    power/acpi_cpufreq: remove the verification of lcore ID
>>    power/amd_pstate: remove the verification of lcore ID
>>    power/cppc_cpufreq: remove the verification of lcore ID
>>    power/intel_pstate: remove the verification of lcore ID
>>    power/kvm_vm: remove the verification of lcore ID
>>
>>   drivers/power/acpi/acpi_cpufreq.c             | 65 -------------------
>>   drivers/power/amd_pstate/amd_pstate_cpufreq.c | 65 -------------------
>>   drivers/power/cppc/cppc_cpufreq.c             | 65 -------------------
>>   .../power/intel_pstate/intel_pstate_cpufreq.c | 65 -------------------
>>   drivers/power/kvm_vm/kvm_vm.c                 | 10 ---
>>   lib/power/power_common.h                      |  7 ++
>>   lib/power/rte_power_cpufreq.c                 | 14 ++++
>>   lib/power/rte_power_pmd_mgmt.c                | 25 ++-----
>>   lib/power/rte_power_qos.c                     | 10 +--
>>   9 files changed, 30 insertions(+), 296 deletions(-)
>>
> Patch 3 did not get sent in the series maybe too big or mail issue?
It is in the series. I can see it in dpdk patch list.
https://patches.dpdk.org/project/dpdk/patch/20260416030612.2379407-2-lihuisong@huawei.com/