From patchwork Thu Jun 29 18:21:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Blunck X-Patchwork-Id: 26010 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id C1CEB7CC5; Thu, 29 Jun 2017 20:23:07 +0200 (CEST) Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by dpdk.org (Postfix) with ESMTP id 657E85A98 for ; Thu, 29 Jun 2017 20:22:35 +0200 (CEST) Received: by mail-wm0-f65.google.com with SMTP id u23so4075810wma.2 for ; Thu, 29 Jun 2017 11:22:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=AH51ZlVp3YLX6FHMEMsyNBKcRrGh3XOF50RTO1izdOU=; b=CeDvgR3JeAPX0pywtO6Lcqk9BIhSt32adoH8ph+jDsSzCpzSEjvG/5RGPOG1pF2FlM t2Xksjh7XR2359wQafNYN0g/AkySC9JXsD1bbsUNvKHLNyv7FTshXMQyj2vz9UzrHwHv IDoQV6lK34agGvSiztefZOzFPyymXbHXowVJx69B19JWSC2V3iAleBq+vEKY5VLAb4Vv bN2OMp83u05wCNarRqqhNQfxJaCviz7omEDe2N9ro1VliRu25UaDTzt6LFi2+wW+tCwk GxegQAm/0nRLOssdS/aHaQXUoOi2YxLNARgvcJS0b+/J4P3UtU5XeElzHYUCnZ2FEini hQNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=AH51ZlVp3YLX6FHMEMsyNBKcRrGh3XOF50RTO1izdOU=; b=if1dmMp3UYZ2Mtbys0mrXMp0baUGDaVjFi6BFR2/6B3cM/h9v0DhbxvPdU9BFtjOgh R99huxA936niPl8udZDlbH7+V51hMxYvg0jMdVB1GwbXd0H+h0iO+6zpkB/bpcjec5ie mJpl3GBYBZ4Kp5eoOW50vhjbdJ17V5CZ8gI7+94LnYA7lJt+pM1p6AL1HkAbARNyyHkt uo2tXoA+1IXWJ8GqhfsoUh7FmneGSymRKTVM5dYu5i23XLs2lMGrJniHGQwgj5hZIbGn 3ULdEHLD8TwfwuA3Rq+GtOUhar9NNwymO+ISOoJDLuykoxJD8BjeroDfDEOxrKgP97R6 MRfA== X-Gm-Message-State: AKS2vOz4ggZ4wxgq6PLII74KQxmmUvgMbe+OycrW+y01OQfVfBd2/3L2 wHKA49eF4O4qpUqV X-Received: by 10.80.167.65 with SMTP id h59mr2699636edc.124.1498760554904; Thu, 29 Jun 2017 11:22:34 -0700 (PDT) Received: from weierstrass.local ([91.200.110.13]) by smtp.gmail.com with ESMTPSA id e28sm1446366ede.14.2017.06.29.11.22.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 29 Jun 2017 11:22:33 -0700 (PDT) From: Jan Blunck To: dev@dpdk.org Cc: gaetan.rivet@6wind.com, shreyansh.jain@nxp.com Date: Thu, 29 Jun 2017 20:21:58 +0200 Message-Id: <20170629182206.1072-8-jblunck@infradead.org> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170629182206.1072-1-jblunck@infradead.org> References: <20170629182206.1072-1-jblunck@infradead.org> Subject: [dpdk-dev] [PATCH v7 07/15] bus: add bus iterator to find a device 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: Jan Blunck Signed-off-by: Gaetan Rivet --- lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 + lib/librte_eal/common/eal_common_bus.c | 15 ++++++++++++++ lib/librte_eal/common/include/rte_bus.h | 26 +++++++++++++++++++++++++ lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 + 4 files changed, 43 insertions(+) diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map index f1a0765..21640d6 100644 --- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map +++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map @@ -164,6 +164,7 @@ DPDK_17.05 { rte_bus_find; rte_bus_find_by_device; + rte_bus_find_device; rte_cpu_is_supported; rte_log_dump; rte_log_register; diff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c index 276cce6..61aa947 100644 --- a/lib/librte_eal/common/eal_common_bus.c +++ b/lib/librte_eal/common/eal_common_bus.c @@ -187,3 +187,18 @@ rte_bus_find_by_device(const struct rte_device *dev) { return rte_bus_find(NULL, bus_find_device, (const void *)dev); } + +struct rte_device * +rte_bus_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, + const void *data) +{ + struct rte_bus *bus; + struct rte_device *dev = NULL; + + TAILQ_FOREACH(bus, &rte_bus_list, next) { + dev = bus->find_device(start, cmp, data); + if (dev) + break; + } + return dev; +} diff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/include/rte_bus.h index f8b3215..fea0f39 100644 --- a/lib/librte_eal/common/include/rte_bus.h +++ b/lib/librte_eal/common/include/rte_bus.h @@ -210,6 +210,32 @@ struct rte_bus *rte_bus_find(const struct rte_bus *start, rte_bus_cmp_t cmp, const void *data); /** + * Bus iterator to find a particular device. + * + * This function searches each registered bus to find a device that matches + * the data passed as parameter. + * + * If the comparison function returns zero this function will stop iterating + * over any more buses and devices. To continue a search the device of + * a previous search can be passed via the start parameter. + * + * @param start + * Starting point for the iteration. + * + * @param cmp + * Comparison function. + * + * @param data + * Data to pass to comparison function. + * + * @return + * A pointer to a rte_bus structure or NULL in case no device matches. + */ +struct rte_device *rte_bus_find_device(const struct rte_device *start, + rte_dev_cmp_t cmp, + const void *data); + +/** * Find the registered bus for a particular device. */ struct rte_bus *rte_bus_find_by_device(const struct rte_device *dev); diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map index 6f77222..e0a056d 100644 --- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map +++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map @@ -168,6 +168,7 @@ DPDK_17.05 { rte_bus_find; rte_bus_find_by_device; + rte_bus_find_device; rte_cpu_is_supported; rte_intr_free_epoll_fd; rte_log_dump;