Series-acked-by: Chengwen Feng <fengcheng...@huawei.com>
On 2024/9/18 16:26, Mattias Rönnblom wrote:
> This patch set introduces a new API <rte_lcore_var.h> for static
> per-lcore id data allocation.
>
> Please refer to the <rte_lcore_var.h> API documentation for both a
> rationale for this new API, and a comparison to the alternatives
> available.
>
> The adoption of this API would affect many different DPDK modules, but
> the author updated only a few, mostly to serve as examples in this
> RFC, and to iron out some, but surely not all, wrinkles in the API.
>
> The question on how to best allocate static per-lcore memory has been
> up several times on the dev mailing list, for example in the thread on
> "random: use per lcore state" RFC by Stephen Hemminger.
>
> Lcore variables are surely not the answer to all your per-lcore-data
> needs, since it only allows for more-or-less static allocation. In the
> author's opinion, it does however provide a reasonably simple and
> clean and seemingly very much performant solution to a real problem.
>
> Mattias Rönnblom (7):
> eal: add static per-lcore memory allocation facility
> eal: add lcore variable functional tests
> eal: add lcore variable performance test
> random: keep PRNG state in lcore variable
> power: keep per-lcore state in lcore variable
> service: keep per-lcore state in lcore variable
> eal: keep per-lcore power intrinsics state in lcore variable
>
> MAINTAINERS | 6 +
> app/test/meson.build | 2 +
> app/test/test_lcore_var.c | 436 ++++++++++++++++++
> app/test/test_lcore_var_perf.c | 257 +++++++++++
> config/rte_config.h | 1 +
> doc/api/doxy-api-index.md | 1 +
> .../prog_guide/env_abstraction_layer.rst | 45 +-
> doc/guides/rel_notes/release_24_11.rst | 14 +
> lib/eal/common/eal_common_lcore_var.c | 79 ++++
> lib/eal/common/meson.build | 1 +
> lib/eal/common/rte_random.c | 28 +-
> lib/eal/common/rte_service.c | 117 ++---
> lib/eal/include/meson.build | 1 +
> lib/eal/include/rte_lcore_var.h | 390 ++++++++++++++++
> lib/eal/version.map | 2 +
> lib/eal/x86/rte_power_intrinsics.c | 17 +-
> lib/power/rte_power_pmd_mgmt.c | 35 +-
> 17 files changed, 1339 insertions(+), 93 deletions(-)
> create mode 100644 app/test/test_lcore_var.c
> create mode 100644 app/test/test_lcore_var_perf.c
> create mode 100644 lib/eal/common/eal_common_lcore_var.c
> create mode 100644 lib/eal/include/rte_lcore_var.h
>
