From: Bruce Richardson <bruce.richardson@intel.com>
To: Ruifeng Wang <ruifeng.wang@arm.com>
Cc: Vladimir Medvedkin <vladimir.medvedkin@intel.com>,
dev@dpdk.org, honnappa.nagarahalli@arm.com, nd@arm.com
Subject: Re: [dpdk-dev] [PATCH 2/2] lpm: hide internal data
Date: Tue, 15 Sep 2020 17:02:24 +0100 [thread overview]
Message-ID: <20200915160224.GA825@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <20200907081518.46350-3-ruifeng.wang@arm.com>
On Mon, Sep 07, 2020 at 04:15:17PM +0800, Ruifeng Wang wrote:
> Fields except tbl24 and tbl8 in rte_lpm structure have no
> need to be exposed to the user.
> Hide the unneeded exposure of structure fields for better
> ABI maintainability.
>
> Suggested-by: David Marchand <david.marchand@redhat.com>
> Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
> Reviewed-by: Phil Yang <phil.yang@arm.com>
> ---
> lib/librte_lpm/rte_lpm.c | 152 +++++++++++++++++++++++----------------
> lib/librte_lpm/rte_lpm.h | 7 --
> 2 files changed, 91 insertions(+), 68 deletions(-)
>
<snip>
> diff --git a/lib/librte_lpm/rte_lpm.h b/lib/librte_lpm/rte_lpm.h
> index 03da2d37e..112d96f37 100644
> --- a/lib/librte_lpm/rte_lpm.h
> +++ b/lib/librte_lpm/rte_lpm.h
> @@ -132,17 +132,10 @@ struct rte_lpm_rule_info {
>
> /** @internal LPM structure. */
> struct rte_lpm {
> - /* LPM metadata. */
> - char name[RTE_LPM_NAMESIZE]; /**< Name of the lpm. */
> - uint32_t max_rules; /**< Max. balanced rules per lpm. */
> - uint32_t number_tbl8s; /**< Number of tbl8s. */
> - struct rte_lpm_rule_info rule_info[RTE_LPM_MAX_DEPTH]; /**< Rule info table. */
> -
> /* LPM Tables. */
> struct rte_lpm_tbl_entry tbl24[RTE_LPM_TBL24_NUM_ENTRIES]
> __rte_cache_aligned; /**< LPM tbl24 table. */
> struct rte_lpm_tbl_entry *tbl8; /**< LPM tbl8 table. */
> - struct rte_lpm_rule *rules_tbl; /**< LPM rules. */
> };
>
Since this changes the ABI, does it not need advance notice?
[Basically the return value point from rte_lpm_create() will be different,
and that return value could be used by rte_lpm_lookup() which as a static
inline function will be in the binary and using the old structure offsets.]
> /** LPM RCU QSBR configuration structure. */
> --
> 2.17.1
>
next prev parent reply other threads:[~2020-09-15 16:02 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 8:15 [dpdk-dev] [PATCH 0/2] LPM changes Ruifeng Wang
2020-09-07 8:15 ` [dpdk-dev] [PATCH 1/2] lpm: fix free of data structure Ruifeng Wang
2020-09-15 15:55 ` Bruce Richardson
2020-09-15 16:25 ` Medvedkin, Vladimir
2020-09-07 8:15 ` [dpdk-dev] [PATCH 2/2] lpm: hide internal data Ruifeng Wang
2020-09-15 16:02 ` Bruce Richardson [this message]
2020-09-15 16:28 ` Medvedkin, Vladimir
2020-09-16 3:17 ` Ruifeng Wang
2020-09-30 8:45 ` Kevin Traynor
2020-10-09 6:54 ` Ruifeng Wang
2020-10-13 13:53 ` Kevin Traynor
2020-10-13 14:58 ` Michel Machado
2020-10-13 15:41 ` Medvedkin, Vladimir
2020-10-13 17:46 ` Michel Machado
2020-10-13 19:06 ` Medvedkin, Vladimir
2020-10-13 19:48 ` Michel Machado
2020-10-14 13:10 ` Medvedkin, Vladimir
2020-10-14 23:57 ` Honnappa Nagarahalli
2020-10-15 13:39 ` Michel Machado
2020-10-15 17:38 ` Honnappa Nagarahalli
2020-10-15 19:30 ` Medvedkin, Vladimir
2020-10-15 22:54 ` Honnappa Nagarahalli
2020-10-16 11:39 ` Kevin Traynor
2020-10-16 13:55 ` Michel Machado
2020-10-19 14:53 ` David Marchand
2020-10-20 14:22 ` Thomas Monjalon
2020-10-20 14:32 ` Medvedkin, Vladimir
2020-10-19 17:53 ` Honnappa Nagarahalli
2020-09-15 14:41 ` [dpdk-dev] [PATCH 0/2] LPM changes David Marchand
2020-10-19 13:37 ` Kevin Traynor
2020-10-21 3:02 ` [dpdk-dev] [PATCH v2 " Ruifeng Wang
2020-10-21 3:02 ` [dpdk-dev] [PATCH v2 1/2] lpm: fix free of data structure Ruifeng Wang
2020-10-21 3:02 ` [dpdk-dev] [PATCH v2 2/2] lpm: hide internal data Ruifeng Wang
2020-10-21 7:58 ` Thomas Monjalon
2020-10-21 8:15 ` Ruifeng Wang
2020-10-22 15:14 ` David Marchand
2020-10-23 6:13 ` Ruifeng Wang
2020-10-23 16:08 ` Medvedkin, Vladimir
2020-10-23 9:38 ` [dpdk-dev] [PATCH v3 0/2] LPM changes David Marchand
2020-10-23 9:38 ` [dpdk-dev] [PATCH v3 1/2] lpm: fix free of data structure David Marchand
2020-10-23 9:38 ` [dpdk-dev] [PATCH v3 2/2] lpm: hide internal data David Marchand
2020-10-26 8:26 ` [dpdk-dev] [PATCH v3 0/2] LPM changes David Marchand
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