From patchwork Fri Nov 24 16:06:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Rybchenko X-Patchwork-Id: 31648 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6A13A2B96; Fri, 24 Nov 2017 17:07:10 +0100 (CET) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [148.163.129.52]) by dpdk.org (Postfix) with ESMTP id BB6E32B84 for ; Fri, 24 Nov 2017 17:07:05 +0100 (CET) Received: from pure.maildistiller.com (dispatch1.mdlocal [10.7.20.164]) by dispatch1-us1.ppe-hosted.com (Proofpoint Essentials ESMTP Server) with ESMTP id 7154F60F73; Fri, 24 Nov 2017 16:07:05 +0000 (UTC) X-Virus-Scanned: Proofpoint Essentials engine Received: from mx1-us3.ppe-hosted.com (us4-filterqueue.mdlocal [10.7.20.246]) by pure.maildistiller.com (Proofpoint Essentials ESMTP Server) with ESMTPS id D65BF1C0054; Fri, 24 Nov 2017 16:07:04 +0000 (UTC) Received: from webmail.solarflare.com (webmail.solarflare.com [12.187.104.26]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1-us3.ppe-hosted.com (Proofpoint Essentials ESMTP Server) with ESMTPS id C6E9BB40090; Fri, 24 Nov 2017 16:07:04 +0000 (UTC) Received: from ocex03.SolarFlarecom.com (10.20.40.36) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Fri, 24 Nov 2017 08:07:02 -0800 Received: from opal.uk.solarflarecom.com (10.17.10.1) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25 via Frontend Transport; Fri, 24 Nov 2017 08:07:02 -0800 Received: from uklogin.uk.solarflarecom.com (uklogin.uk.solarflarecom.com [10.17.10.10]) by opal.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id vAOG70ca019662; Fri, 24 Nov 2017 16:07:00 GMT Received: from uklogin.uk.solarflarecom.com (localhost.localdomain [127.0.0.1]) by uklogin.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id vAOG70S8021131; Fri, 24 Nov 2017 16:07:00 GMT From: Andrew Rybchenko To: CC: Olivier Matz , "Artem V. Andreev" Date: Fri, 24 Nov 2017 16:06:26 +0000 Message-ID: <1511539591-20966-2-git-send-email-arybchenko@solarflare.com> X-Mailer: git-send-email 1.8.2.3 In-Reply-To: <1511539591-20966-1-git-send-email-arybchenko@solarflare.com> References: <1511539591-20966-1-git-send-email-arybchenko@solarflare.com> MIME-Version: 1.0 X-MDID: 1511539625-8K0EUb9je1Od Subject: [dpdk-dev] [RFC PATCH 1/6] mempool: implement abstract mempool info API X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: "Artem V. Andreev" Primarily, it is intended as a way for the mempool driver to provide additional information on how it lays up objects inside the mempool. Signed-off-by: Artem V. Andreev Signed-off-by: Andrew Rybchenko --- lib/librte_mempool/rte_mempool.h | 31 +++++++++++++++++++++++++++++++ lib/librte_mempool/rte_mempool_ops.c | 15 +++++++++++++++ 2 files changed, 46 insertions(+) diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h index 721227f..3c59d36 100644 --- a/lib/librte_mempool/rte_mempool.h +++ b/lib/librte_mempool/rte_mempool.h @@ -217,6 +217,11 @@ struct rte_mempool_memhdr { void *opaque; /**< Argument passed to the free callback */ }; +/* + * Additional information about the mempool + */ +struct rte_mempool_info; + /** * The RTE mempool structure. */ @@ -422,6 +427,12 @@ typedef int (*rte_mempool_get_capabilities_t)(const struct rte_mempool *mp, unsigned int *flags); /** + * Get some additional information about a mempool. + */ +typedef int (*rte_mempool_get_info_t)(const struct rte_mempool *mp, + struct rte_mempool_info *info); + +/** * Notify new memory area to mempool. */ typedef int (*rte_mempool_ops_register_memory_area_t) @@ -443,6 +454,10 @@ struct rte_mempool_ops { * Notify new memory area to mempool */ rte_mempool_ops_register_memory_area_t register_memory_area; + /** + * Get mempool info + */ + rte_mempool_get_info_t get_info; } __rte_cache_aligned; #define RTE_MEMPOOL_MAX_OPS_IDX 16 /**< Max registered ops structs */ @@ -592,6 +607,22 @@ rte_mempool_ops_register_memory_area(const struct rte_mempool *mp, char *vaddr, rte_iova_t iova, size_t len); /** + * @internal wrapper for mempool_ops get_info callback. + * + * @param mp [in] + * Pointer to the memory pool. + * @param info [out] + * Pointer to the rte_mempool_info structure + * @return + * - 0: Success; The mempool driver supports retrieving supplementary + * mempool information + * - -ENOTSUP - doesn't support get_info ops (valid case). + */ +int +rte_mempool_ops_get_info(const struct rte_mempool *mp, + struct rte_mempool_info *info); + +/** * @internal wrapper for mempool_ops free callback. * * @param mp diff --git a/lib/librte_mempool/rte_mempool_ops.c b/lib/librte_mempool/rte_mempool_ops.c index 92b9f90..23de4db 100644 --- a/lib/librte_mempool/rte_mempool_ops.c +++ b/lib/librte_mempool/rte_mempool_ops.c @@ -88,6 +88,7 @@ rte_mempool_register_ops(const struct rte_mempool_ops *h) ops->get_count = h->get_count; ops->get_capabilities = h->get_capabilities; ops->register_memory_area = h->register_memory_area; + ops->get_info = h->get_info; rte_spinlock_unlock(&rte_mempool_ops_table.sl); @@ -152,6 +153,20 @@ rte_mempool_ops_register_memory_area(const struct rte_mempool *mp, char *vaddr, return ops->register_memory_area(mp, vaddr, iova, len); } +/* wrapper to get additional mempool info */ +int +rte_mempool_ops_get_info(const struct rte_mempool *mp, + struct rte_mempool_info *info) +{ + struct rte_mempool_ops *ops; + + ops = rte_mempool_get_ops(mp->ops_index); + + RTE_FUNC_PTR_OR_ERR_RET(ops->get_info, -ENOTSUP); + return ops->get_info(mp, info); +} + + /* sets mempool ops previously registered by rte_mempool_register_ops. */ int rte_mempool_set_ops_byname(struct rte_mempool *mp, const char *name,