From patchwork Sun Dec 16 16:32:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wiles, Keith" X-Patchwork-Id: 48951 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 CE1311B8FC; Sun, 16 Dec 2018 17:32:48 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id CFFA01B8C0 for ; Sun, 16 Dec 2018 17:32:46 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Dec 2018 08:32:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,361,1539673200"; d="scan'208";a="130405376" Received: from asooresh-mobl1.amr.corp.intel.com ([10.254.183.55]) by fmsmga001.fm.intel.com with ESMTP; 16 Dec 2018 08:32:44 -0800 From: Keith Wiles To: dev@dpdk.org Date: Sun, 16 Dec 2018 10:32:38 -0600 Message-Id: <20181216163239.87702-3-keith.wiles@intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181216163239.87702-1-keith.wiles@intel.com> References: <20181216163239.87702-1-keith.wiles@intel.com> Subject: [dpdk-dev] [PATCH 3/4] eal:add tailq walk routine 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" Signed-off-by: Keith Wiles --- lib/librte_eal/common/eal_common_tailqs.c | 19 +++++++++++++++++++ lib/librte_eal/common/include/rte_tailq.h | 13 +++++++++++++ lib/librte_eal/rte_eal_version.map | 1 + 3 files changed, 33 insertions(+) diff --git a/lib/librte_eal/common/eal_common_tailqs.c b/lib/librte_eal/common/eal_common_tailqs.c index babd3b30a..791dcc37b 100644 --- a/lib/librte_eal/common/eal_common_tailqs.c +++ b/lib/librte_eal/common/eal_common_tailqs.c @@ -69,6 +69,25 @@ rte_dump_tailq(FILE *f) rte_rwlock_read_unlock(&mcfg->qlock); } +void +rte_tailq_walk(void (*iter)(const struct rte_tailq_head *, void *), void *arg) +{ + struct rte_mem_config *mcfg; + unsigned int i = 0; + + if (!iter) + return; + mcfg = rte_eal_get_configuration()->mem_config; + + rte_rwlock_read_lock(&mcfg->qlock); + for (i = 0; i < RTE_MAX_TAILQ; i++) { + const struct rte_tailq_head *tailq = &mcfg->tailq_head[i]; + + iter(tailq, arg); + } + rte_rwlock_read_unlock(&mcfg->qlock); +} + static struct rte_tailq_head * rte_eal_tailq_create(const char *name) { diff --git a/lib/librte_eal/common/include/rte_tailq.h b/lib/librte_eal/common/include/rte_tailq.h index 9b01abb2c..b9b1c6e75 100644 --- a/lib/librte_eal/common/include/rte_tailq.h +++ b/lib/librte_eal/common/include/rte_tailq.h @@ -18,6 +18,7 @@ extern "C" { #include #include #include +#include /** dummy structure type used by the rte_tailq APIs */ struct rte_tailq_entry { @@ -85,6 +86,18 @@ struct rte_tailq_elem { */ void rte_dump_tailq(FILE *f); +/** + * Walk the tailq list and call the Iterator function given. + * + * @param func + * Iterator function + * @param arg + * pointer to user supplied argument passed to Iterator function + */ +void __rte_experimental + rte_tailq_walk(void (*iter)(const struct rte_tailq_head *, void *), + void *arg); + /** * Lookup for a tail queue. * diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map index 3fe78260d..9a7abc778 100644 --- a/lib/librte_eal/rte_eal_version.map +++ b/lib/librte_eal/rte_eal_version.map @@ -360,4 +360,5 @@ EXPERIMENTAL { rte_service_may_be_active; rte_socket_count; rte_socket_id_by_idx; + rte_tailq_walk; };