[dpdk-dev] [PATCH v10 1/3] lib/lpm: integrate RCU QSBR
Ruifeng Wang
Ruifeng.Wang at arm.com
Fri Jul 10 04:29:07 CEST 2020
The ci/checkpatch warning is a false positive.
> -----Original Message-----
> From: Ruifeng Wang <ruifeng.wang at arm.com>
> Sent: Friday, July 10, 2020 10:22 AM
> To: Bruce Richardson <bruce.richardson at intel.com>; Vladimir Medvedkin
> <vladimir.medvedkin at intel.com>; John McNamara
> <john.mcnamara at intel.com>; Marko Kovacevic
> <marko.kovacevic at intel.com>; Ray Kinsella <mdr at ashroe.eu>; Neil Horman
> <nhorman at tuxdriver.com>
> Cc: dev at dpdk.org; konstantin.ananyev at intel.com; Honnappa Nagarahalli
> <Honnappa.Nagarahalli at arm.com>; nd <nd at arm.com>; Ruifeng Wang
> <Ruifeng.Wang at arm.com>
> Subject: [PATCH v10 1/3] lib/lpm: integrate RCU QSBR
>
> Currently, the tbl8 group is freed even though the readers might be using the
> tbl8 group entries. The freed tbl8 group can be reallocated quickly. This
> results in incorrect lookup results.
>
> RCU QSBR process is integrated for safe tbl8 group reclaim.
> Refer to RCU documentation to understand various aspects of integrating
> RCU library into other libraries.
>
> To avoid ABI breakage, a struct __rte_lpm is created for lpm library internal
> use. This struct wraps rte_lpm that has been exposed and also includes
> members that don't need to be exposed such as RCU related config.
>
> Signed-off-by: Ruifeng Wang <ruifeng.wang at arm.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
> Acked-by: Ray Kinsella <mdr at ashroe.eu>
> Acked-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
> ---
> doc/guides/prog_guide/lpm_lib.rst | 32 ++++++
> lib/librte_lpm/Makefile | 2 +-
> lib/librte_lpm/meson.build | 1 +
> lib/librte_lpm/rte_lpm.c | 165 +++++++++++++++++++++++++----
> lib/librte_lpm/rte_lpm.h | 53 +++++++++
> lib/librte_lpm/rte_lpm_version.map | 6 ++
> 6 files changed, 237 insertions(+), 22 deletions(-)
>
More information about the dev
mailing list