On 4/16/2026 11:51 PM, Stephen Hemminger wrote:
On Thu, 16 Apr 2026 11:05:57 +0800
Huisong Li <[email protected]> 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/[email protected]/
